diff --git a/README.md b/README.md
index ff39e4142a..345a55d12f 100644
--- a/README.md
+++ b/README.md
@@ -10,9 +10,9 @@ For crashes and similar issues, please attach the following information:
 
 * (On Windows) The log as produced by dxdiag (start -> run -> dxdiag -> save output)
 * The Cura GUI log file, located at
-  * `%APPDATA%\cura\<Cura version>\cura.log` (Windows), or usually `C:\Users\\<your username>\AppData\Roaming\cura\<Cura version>\cura.log`
-  * `$USER/Library/Application Support/cura/<Cura version>/cura.log` (OSX)
-  * `$USER/.local/share/cura/<Cura version>/cura.log` (Ubuntu/Linux)
+  * `%APPDATA%\cura\<Cura version>\cura.log` (Windows), or usually `C:\Users\<your username>\AppData\Roaming\cura\<Cura version>\cura.log`
+  * `$HOME/Library/Application Support/cura/<Cura version>/cura.log` (OSX)
+  * `$HOME/.local/share/cura/<Cura version>/cura.log` (Ubuntu/Linux)
 
 If the Cura user interface still starts, you can also reach this directory from the application menu in Help -> Show settings folder
 
diff --git a/cura/API/Account.py b/cura/API/Account.py
index 728d0690a3..2e48a040ad 100644
--- a/cura/API/Account.py
+++ b/cura/API/Account.py
@@ -109,7 +109,6 @@ class Account(QObject):
         self._authorization_service.accessTokenChanged.connect(self._onAccessTokenChanged)
         self._authorization_service.loadAuthDataFromPreferences()
 
-
     @pyqtProperty(int, notify=syncStateChanged)
     def syncState(self):
         return self._sync_state
@@ -178,6 +177,7 @@ class Account(QObject):
         if error_message:
             if self._error_message:
                 self._error_message.hide()
+            Logger.log("w", "Failed to login: %s", error_message)
             self._error_message = Message(error_message, title = i18n_catalog.i18nc("@info:title", "Login failed"))
             self._error_message.show()
             self._logged_in = False
diff --git a/cura/Machines/Models/MaterialManagementModel.py b/cura/Machines/Models/MaterialManagementModel.py
index cd35a78353..6663dbdae1 100644
--- a/cura/Machines/Models/MaterialManagementModel.py
+++ b/cura/Machines/Models/MaterialManagementModel.py
@@ -2,9 +2,10 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import copy  # To duplicate materials.
-from PyQt5.QtCore import QObject, pyqtSignal, pyqtSlot  # To allow the preference page proxy to be used from the actual preferences page.
+from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject, QUrl
 from typing import Any, Dict, Optional, TYPE_CHECKING
 import uuid  # To generate new GUIDs for new materials.
+import zipfile  # To export all materials in a .zip archive.
 
 from UM.i18n import i18nCatalog
 from UM.Logger import Logger
@@ -20,11 +21,6 @@ if TYPE_CHECKING:
 catalog = i18nCatalog("cura")
 
 class MaterialManagementModel(QObject):
-    """Proxy class to the materials page in the preferences.
-
-    This class handles the actions in that page, such as creating new materials, renaming them, etc.
-    """
-
     favoritesChanged = pyqtSignal(str)
     """Triggered when a favorite is added or removed.
 
@@ -264,3 +260,40 @@ class MaterialManagementModel(QObject):
             self.favoritesChanged.emit(material_base_file)
         except ValueError:  # Material was not in the favorites list.
             Logger.log("w", "Material {material_base_file} was already not a favorite material.".format(material_base_file = material_base_file))
+
+    @pyqtSlot(result = QUrl)
+    def getPreferredExportAllPath(self) -> QUrl:
+        """
+        Get the preferred path to export materials to.
+
+        If there is a removable drive, that should be the preferred path. Otherwise it should be the most recent local
+        file path.
+        :return: The preferred path to export all materials to.
+        """
+        cura_application = cura.CuraApplication.CuraApplication.getInstance()
+        device_manager = cura_application.getOutputDeviceManager()
+        devices = device_manager.getOutputDevices()
+        for device in devices:
+            if device.__class__.__name__ == "RemovableDriveOutputDevice":
+                return QUrl.fromLocalFile(device.getId())
+        else:  # No removable drives? Use local path.
+            return cura_application.getDefaultPath("dialog_material_path")
+
+    @pyqtSlot(QUrl)
+    def exportAll(self, file_path: QUrl) -> None:
+        """
+        Export all materials to a certain file path.
+        :param file_path: The path to export the materials to.
+        """
+        registry = CuraContainerRegistry.getInstance()
+
+        archive = zipfile.ZipFile(file_path.toLocalFile(), "w", compression = zipfile.ZIP_DEFLATED)
+        for metadata in registry.findInstanceContainersMetadata(type = "material"):
+            if metadata["base_file"] != metadata["id"]:  # Only process base files.
+                continue
+            if metadata["id"] == "empty_material":  # Don't export the empty material.
+                continue
+            material = registry.findContainers(id = metadata["id"])[0]
+            suffix = registry.getMimeTypeForContainer(type(material)).preferredSuffix
+            filename = metadata["id"] + "." + suffix
+            archive.writestr(filename, material.serialize())
diff --git a/cura/OAuth2/LocalAuthorizationServer.py b/cura/OAuth2/LocalAuthorizationServer.py
index ac14b00985..219191c295 100644
--- a/cura/OAuth2/LocalAuthorizationServer.py
+++ b/cura/OAuth2/LocalAuthorizationServer.py
@@ -54,6 +54,7 @@ class LocalAuthorizationServer:
         if self._web_server:
             # If the server is already running (because of a previously aborted auth flow), we don't have to start it.
             # We still inject the new verification code though.
+            Logger.log("d", "Auth web server was already running. Updating the verification code")
             self._web_server.setVerificationCode(verification_code)
             return
 
@@ -85,6 +86,7 @@ class LocalAuthorizationServer:
             except OSError:
                 # OS error can happen if the socket was already closed. We really don't care about that case.
                 pass
+        Logger.log("d", "Local oauth2 web server was shut down")
         self._web_server = None
         self._web_server_thread = None
 
@@ -96,12 +98,13 @@ class LocalAuthorizationServer:
 
         :return: None
         """
+        Logger.log("d", "Local web server for authorization has started")
         if self._web_server:
             if sys.platform == "win32":
                 try:
                     self._web_server.serve_forever()
-                except OSError as e:
-                    Logger.warning(str(e))
+                except OSError:
+                    Logger.logException("w", "An exception happened while serving the auth server")
             else:
                 # Leave the default behavior in non-windows platforms
                 self._web_server.serve_forever()
diff --git a/cura/Settings/GlobalStack.py b/cura/Settings/GlobalStack.py
index 2c7cbf5e25..282034c0ee 100755
--- a/cura/Settings/GlobalStack.py
+++ b/cura/Settings/GlobalStack.py
@@ -86,6 +86,14 @@ class GlobalStack(CuraContainerStack):
     def supportsNetworkConnection(self):
         return self.getMetaDataEntry("supports_network_connection", False)
 
+    @pyqtProperty(bool, constant = True)
+    def supportsMaterialExport(self):
+        """
+        Whether the printer supports Cura's export format of material profiles.
+        :return: ``True`` if it supports it, or ``False`` if not.
+        """
+        return self.getMetaDataEntry("supports_material_export", False)
+
     @classmethod
     def getLoadingPriority(cls) -> int:
         return 2
diff --git a/plugins/CuraEngineBackend/CuraEngineBackend.py b/plugins/CuraEngineBackend/CuraEngineBackend.py
index 1aa6c86dcb..fa9a8c5474 100755
--- a/plugins/CuraEngineBackend/CuraEngineBackend.py
+++ b/plugins/CuraEngineBackend/CuraEngineBackend.py
@@ -4,12 +4,12 @@
 import argparse #To run the engine in debug mode if the front-end is in debug mode.
 from collections import defaultdict
 import os
-from PyQt5.QtCore import QObject, QTimer, pyqtSlot
+from PyQt5.QtCore import QObject, QTimer, QUrl, pyqtSlot
 import sys
 from time import time
 from typing import Any, cast, Dict, List, Optional, Set, TYPE_CHECKING
 
-from PyQt5.QtGui import QImage
+from PyQt5.QtGui import QDesktopServices, QImage
 
 from UM.Backend.Backend import Backend, BackendState
 from UM.Scene.SceneNode import SceneNode
@@ -157,6 +157,18 @@ class CuraEngineBackend(QObject, Backend):
         self.determineAutoSlicing()
         application.getPreferences().preferenceChanged.connect(self._onPreferencesChanged)
 
+        self._slicing_error_message = Message(
+            text = catalog.i18nc("@message", "Slicing failed with an unexpected error. Please consider reporting a bug on our issue tracker."),
+            title = catalog.i18nc("@message:title", "Slicing failed")
+        )
+        self._slicing_error_message.addAction(
+            action_id = "report_bug",
+            name = catalog.i18nc("@message:button", "Report a bug"),
+            description = catalog.i18nc("@message:description", "Report a bug on Ultimaker Cura's issue tracker."),
+            icon = "[no_icon]"
+        )
+        self._slicing_error_message.actionTriggered.connect(self._reportBackendError)
+
         self._snapshot = None #type: Optional[QImage]
 
         application.initializationFinished.connect(self.initialize)
@@ -922,9 +934,22 @@ class CuraEngineBackend(QObject, Backend):
 
         if not self._restart:
             if self._process: # type: ignore
-                Logger.log("d", "Backend quit with return code %s. Resetting process and socket.", self._process.wait()) # type: ignore
+                return_code = self._process.wait()
+                if return_code != 0:
+                    Logger.log("e", f"Backend exited abnormally with return code {return_code}!")
+                    self._slicing_error_message.show()
+                    self.setState(BackendState.Error)
+                    self.stopSlicing()
+                else:
+                    Logger.log("d", "Backend finished slicing. Resetting process and socket.")
                 self._process = None # type: ignore
 
+    def _reportBackendError(self, _message_id: str, _action_id: str) -> None:
+        """
+        Triggered when the user wants to report an error in the back-end.
+        """
+        QDesktopServices.openUrl(QUrl("https://github.com/Ultimaker/Cura/issues/new/choose"))
+
     def _onGlobalStackChanged(self) -> None:
         """Called when the global container stack changes"""
 
diff --git a/plugins/DigitalLibrary/resources/images/projects_not_found.svg b/plugins/DigitalLibrary/resources/images/projects_not_found.svg
new file mode 100644
index 0000000000..ba118ebc0a
--- /dev/null
+++ b/plugins/DigitalLibrary/resources/images/projects_not_found.svg
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 378.13 348.13" version="1.1">
+  <defs
+     id="defs7">
+    <style
+       id="style2">
+         .cls-2,.cls-6{fill:#c5dbfb;}
+         .cls-6,.cls-7{stroke-width:2px;}
+         .cls-7{fill:#f3f8fe;}
+         .cls-6,.cls-7{stroke:#061884;}
+      </style>
+  </defs>
+  <path class="cls-2" d="M43,17V3H83a2,2,0,0,1,2,2V17Z" />
+  <path fill="white" d="M 3 1 C 1.8954305 1 1 1.8954305 1 3 L 1 67 C 1 68.104569 1.8954305 69 3 69 L 72.152344 69 A 100 100 0 0 1 89 49.873047 L 89 19 C 89 17.895431 88.104569 17 87 17 L 56 17 L 40 1 L 3 1 z " />
+  <path fill="#c5dbfb" d="M 3 0 C 1.3549904 0 0 1.3549904 0 3 L 0 67 C 0 68.64501 1.3549904 70 3 70 L 71.484375 70 A 100 100 0 0 1 72.835938 68 L 3 68 C 2.4358706 68 2 67.564129 2 67 L 2 3 C 2 2.4358706 2.4358706 2 3 2 L 39.585938 2 L 55.585938 18 L 87 18 C 87.564129 18 88 18.435871 88 19 L 88 50.765625 A 100 100 0 0 1 90 49.007812 L 90 19 C 90 17.35499 88.64501 16 87 16 L 56.414062 16 L 40.414062 0 L 3 0 z " />
+  <path class="cls-2" d="M153,17V3h40a2,2,0,0,1,2,2V17Z" />
+  <path fill="white" d="M 113 1 C 111.89543 1 111 1.8954305 111 3 L 111 35.201172 A 100 100 0 0 1 155 25 A 100 100 0 0 1 199 35.201172 L 199 19 C 199 17.895431 198.10457 17 197 17 L 166 17 L 150 1 L 113 1 z " />
+  <path fill="#c5dbfb" d="M 113 0 C 111.35499 0 110 1.3549904 110 3 L 110 35.699219 A 100 100 0 0 1 112 34.716797 L 112 3 C 112 2.4358706 112.43587 2 113 2 L 149.58594 2 L 165.58594 18 L 197 18 C 197.56413 18 198 18.435871 198 19 L 198 34.716797 A 100 100 0 0 1 200 35.699219 L 200 19 C 200 17.35499 198.64501 16 197 16 L 166.41406 16 L 150.41406 0 L 113 0 z " />
+  <path class="cls-2" d="M263,17V3h40a2,2,0,0,1,2,2V17Z" />
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+  <path fill="#c5dbfb" d="M 43 93 L 43 107 L 56.634766 107 A 100 100 0 0 1 60.259766 93 L 43 93 z " />
+  <path fill="white" d="M 3 91 C 1.8954305 91 1 91.895431 1 93 L 1 157 C 1 158.10457 1.8954305 159 3 159 L 60.958984 159 A 100 100 0 0 1 55 125 A 100 100 0 0 1 56.634766 107 L 56 107 L 40 91 L 3 91 z " />
+  <path fill="#c5dbfb" d="M 3 90 C 1.3549904 90 0 91.35499 0 93 L 0 157 C 0 158.64501 1.3549904 160 3 160 L 61.324219 160 A 100 100 0 0 1 60.603516 158 L 3 158 C 2.4358706 158 2 157.56413 2 157 L 2 93 C 2 92.435871 2.4358706 92 3 92 L 39.585938 92 L 55.585938 108 L 56.455078 108 A 100 100 0 0 1 56.822266 106 L 56.414062 106 L 40.414062 90 L 3 90 z " />
+  <path class="cls-2" d="M263,107V93h40a2,2,0,0,1,2,2v12Z" />
+  <path fill="white" d="M 249.04102 91 A 100 100 0 0 1 255 125 A 100 100 0 0 1 249.04102 159 L 307 159 C 308.10457 159 309 158.10457 309 157 L 309 109 C 309 107.89543 308.10457 107 307 107 L 276 107 L 260 91 L 249.04102 91 z " />
+  <path fill="#c5dbfb" d="M 248.67578 90 A 100 100 0 0 1 249.39648 92 L 259.58594 92 L 275.58594 108 L 307 108 C 307.56413 108 308 108.43587 308 109 L 308 157 C 308 157.56413 307.56413 158 307 158 L 249.39844 158 A 100 100 0 0 1 248.67383 160 L 307 160 C 308.64501 160 310 158.64501 310 157 L 310 109 C 310 107.35499 308.64501 106 307 106 L 276.41406 106 L 260.41406 90 L 248.67578 90 z " />
+  <path fill="#c5dbfb" d="M 43 183 L 43 197 L 85 197 L 85 196.41406 A 100 100 0 0 1 73.539062 183 L 43 183 z " />
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+  <path fill="#c5dbfb" d="M 3 180 C 1.3549904 180 0 181.35499 0 183 L 0 247 C 0 248.64501 1.3549904 250 3 250 L 87 250 C 88.64501 250 90 248.64501 90 247 L 90 200.99414 A 100 100 0 0 1 88 199.23438 L 88 247 C 88 247.56413 87.564129 248 87 248 L 3 248 C 2.4358706 248 2 247.56413 2 247 L 2 183 C 2 182.43587 2.4358706 182 3 182 L 39.585938 182 L 55.585938 198 L 86.65625 198 A 100 100 0 0 1 84.580078 196 L 56.414062 196 L 40.414062 180 L 3 180 z " />
+  <path fill="white" d="M 111 214.79883 L 111 247 C 111 248.10457 111.89543 249 113 249 L 197 249 C 198.10457 249 199 248.10457 199 247 L 199 214.79883 A 100 100 0 0 1 155 225 A 100 100 0 0 1 111 214.79883 z " />
+  <path fill="#c5dbfb" d="M 110 214.30078 L 110 247 C 110 248.64501 111.35499 250 113 250 L 197 250 C 198.64501 250 200 248.64501 200 247 L 200 214.30078 A 100 100 0 0 1 198 215.2832 L 198 247 C 198 247.56413 197.56413 248 197 248 L 113 248 C 112.43587 248 112 247.56413 112 247 L 112 215.2832 A 100 100 0 0 1 110 214.30078 z " />
+  <path class="cls-2" d="M263,197V183h40a2,2,0,0,1,2,2v12Z" />
+  <path fill="white" d="M 237.84766 181 A 100 100 0 0 1 221 200.12695 L 221 247 C 221 248.10457 221.89543 249 223 249 L 307 249 C 308.10457 249 309 248.10457 309 247 L 309 199 C 309 197.89543 308.10457 197 307 197 L 276 197 L 260 181 L 237.84766 181 z " />
+  <path fill="#c5dbfb" d="M 238.51562 180 A 100 100 0 0 1 237.16406 182 L 259.58594 182 L 275.58594 198 L 307 198 C 307.56413 198 308 198.43587 308 199 L 308 247 C 308 247.56413 307.56413 248 307 248 L 223 248 C 222.43587 248 222 247.56413 222 247 L 222 199.23438 A 100 100 0 0 1 220 200.99219 L 220 247 C 220 248.64501 221.35499 250 223 250 L 307 250 C 308.64501 250 310 248.64501 310 247 L 310 199 C 310 197.35499 308.64501 196 307 196 L 276.41406 196 L 260.41406 180 L 238.51562 180 z " />
+  <path class="cls-6" d="M351.12,322.62h20a10,10,0,0,1,10,10v7a0,0,0,0,1,0,0h-40a0,0,0,0,1,0,0v-7A10,10,0,0,1,351.12,322.62Z" transform="translate(850.61 309.91) rotate(135)" />
+  <rect class="cls-7" x="293.75" y="225.25" width="40" height="117" transform="translate(-108.74 304.96) rotate(-45)" />
+  <polyline class="cls-7" points="213.69 199.25 252.58 238.14 267.43 223.29 228.54 184.4" />
+  <path fill="white" stroke="#061884" stroke-width="2px" d="M 154.94141 30 A 95 95 0 0 0 60 125 A 95 95 0 0 0 155 220 A 95 95 0 0 0 250 125 A 95 95 0 0 0 155 30 A 95 95 0 0 0 154.94141 30 z M 154.82812 40 A 85 85 0 0 1 155 40 A 85 85 0 0 1 240 125 A 85 85 0 0 1 155 210 A 85 85 0 0 1 70 125 A 85 85 0 0 1 154.82812 40 z " />
+  <path class="cls-6" d="M256.37,227.87h20a10,10,0,0,1,10,10v7a0,0,0,0,1,0,0h-40a0,0,0,0,1,0,0v-7a10,10,0,0,1,10-10Z" transform="translate(-89.12 257.58) rotate(-45)" />
+  <path fill="white" d="M 154.94141 45 A 80 80 0 0 0 111 58.185547 L 111 67 C 111 68.104569 111.89543 69 113 69 L 197 69 C 198.10457 69 199 68.104569 199 67 L 199 58.1875 A 80 80 0 0 0 155 45 A 80 80 0 0 0 154.94141 45 z " />
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+  <path fill="#196ef0" d="M 81.679688 93 A 80 80 0 0 0 77.050781 107 L 85 107 L 85 95 A 2 2 0 0 0 83 93 L 81.679688 93 z " />
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+  <path fill="#196ef0" d="M 153 183 L 153 197 L 189.86914 197 A 80 80 0 0 0 195 194.28125 L 195 185 A 2 2 0 0 0 193 183 L 153 183 z "/>
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+  <path fill="#061884" d="m 149.18,133.69 v -3.48 a 14.36,14.36 0 0 1 1.74,-7.25 20.17,20.17 0 0 1 6.4,-6.17 25.87,25.87 0 0 0 5.68,-4.79 7,7 0 0 0 1.48,-4.34 4.13,4.13 0 0 0 -1.93,-3.62 9,9 0 0 0 -5.14,-1.3 24.94,24.94 0 0 0 -7.34,1.16 45.2,45.2 0 0 0 -7.78,3.31 l -5.37,-10.64 a 48.41,48.41 0 0 1 9.89,-4.21 40.25,40.25 0 0 1 11.67,-1.61 q 9.57,0 14.9,4.43 a 14.16,14.16 0 0 1 5.32,11.41 15.41,15.41 0 0 1 -2.55,9 30.38,30.38 0 0 1 -7.92,7.34 32.11,32.11 0 0 0 -5.23,4.37 5.91,5.91 0 0 0 -1.34,4 v 2.41 z m -1.61,15.12 q 0,-4.38 2.46,-6.12 a 10,10 0 0 1 5.95,-1.75 9.69,9.69 0 0 1 5.77,1.75 q 2.46,1.74 2.46,6.12 0,4.22 -2.46,6 a 9.42,9.42 0 0 1 -5.77,1.84 9.69,9.69 0 0 1 -5.95,-1.84 q -2.46,-1.81 -2.46,-6 z" />
+</svg>
diff --git a/plugins/DigitalLibrary/resources/qml/CreateNewProjectPopup.qml b/plugins/DigitalLibrary/resources/qml/CreateNewProjectPopup.qml
index 75fb8d5811..a7297c12fb 100644
--- a/plugins/DigitalLibrary/resources/qml/CreateNewProjectPopup.qml
+++ b/plugins/DigitalLibrary/resources/qml/CreateNewProjectPopup.qml
@@ -93,7 +93,7 @@ Popup
         }
         validator: RegExpValidator
         {
-            regExp: /^[^\\\/\*\?\|\[\]]{0,96}$/
+            regExp: /^[^\\\/\*\?\|\[\]]{0,99}$/
         }
 
         text: PrintInformation.jobName
@@ -148,7 +148,7 @@ Popup
         anchors.bottom: parent.bottom
         anchors.right: parent.right
         text: "Create"
-        enabled: newProjectNameTextField.text != "" && !busy
+        enabled: newProjectNameTextField.text.length >= 2 && !busy
 
         onClicked:
         {
diff --git a/plugins/DigitalLibrary/resources/qml/SaveProjectFilesPage.qml b/plugins/DigitalLibrary/resources/qml/SaveProjectFilesPage.qml
index 03bd655957..30e3513019 100644
--- a/plugins/DigitalLibrary/resources/qml/SaveProjectFilesPage.qml
+++ b/plugins/DigitalLibrary/resources/qml/SaveProjectFilesPage.qml
@@ -63,7 +63,7 @@ Item
         anchors.topMargin: UM.Theme.getSize("thin_margin").height
         validator: RegExpValidator
         {
-            regExp: /^[^\\\/\*\?\|\[\]]{0,96}$/
+            regExp: /^[\w\-\. ()]{0,255}$/
         }
 
         text: PrintInformation.jobName
@@ -200,7 +200,7 @@ Item
         anchors.bottom: parent.bottom
         anchors.right: parent.right
         text: "Save"
-        enabled: (asProjectCheckbox.checked || asSlicedCheckbox.checked) && dfFilenameTextfield.text != ""
+        enabled: (asProjectCheckbox.checked || asSlicedCheckbox.checked) && dfFilenameTextfield.text.length >= 1
 
         onClicked:
         {
diff --git a/plugins/DigitalLibrary/resources/qml/SelectProjectPage.qml b/plugins/DigitalLibrary/resources/qml/SelectProjectPage.qml
index 2de0e78cc7..8b919e299d 100644
--- a/plugins/DigitalLibrary/resources/qml/SelectProjectPage.qml
+++ b/plugins/DigitalLibrary/resources/qml/SelectProjectPage.qml
@@ -1,10 +1,12 @@
 // Copyright (C) 2021 Ultimaker B.V.
+// Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.10
 import QtQuick.Window 2.2
 import QtQuick.Controls 1.4 as OldControls // TableView doesn't exist in the QtQuick Controls 2.x in 5.10, so use the old one
 import QtQuick.Controls 2.3
 import QtQuick.Controls.Styles 1.4
+import QtQuick.Layouts 1.1
 
 import UM 1.2 as UM
 import Cura 1.6 as Cura
@@ -18,7 +20,7 @@ Item
 
     width: parent.width
     height: parent.height
-    property alias createNewProjectButtonVisible: createNewProjectButton.visible
+    property bool createNewProjectButtonVisible: true
 
     anchors
     {
@@ -29,31 +31,58 @@ Item
         margins: UM.Theme.getSize("default_margin").width
     }
 
-    Label
+    RowLayout
     {
-        id: selectProjectLabel
+        id: headerRow
 
-        text: "Select Project"
-        font: UM.Theme.getFont("medium")
-        color: UM.Theme.getColor("small_button_text")
-        anchors.top: parent.top
-        anchors.left: parent.left
-        visible: projectListContainer.visible
-    }
-
-    Cura.SecondaryButton
-    {
-        id: createNewProjectButton
-
-        anchors.verticalCenter: selectProjectLabel.verticalCenter
-        anchors.right: parent.right
-        text: "New Library project"
-
-        onClicked:
+        anchors
         {
-            createNewProjectPopup.open()
+            top: parent.top
+            left: parent.left
+            right: parent.right
+        }
+        height: childrenRect.height
+        spacing: UM.Theme.getSize("default_margin").width
+
+        Cura.TextField
+        {
+            id: searchBar
+            Layout.fillWidth: true
+            implicitHeight: createNewProjectButton.height
+
+            onTextEdited: manager.projectFilter = text //Update the search filter when editing this text field.
+
+            leftIcon: UM.Theme.getIcon("Magnifier")
+            placeholderText: "Search"
+        }
+
+        Cura.SecondaryButton
+        {
+            id: createNewProjectButton
+
+            text: "New Library project"
+            visible: createNewProjectButtonVisible && manager.userAccountCanCreateNewLibraryProject && (manager.retrievingProjectsStatus == DF.RetrievalStatus.Success || manager.retrievingProjectsStatus == DF.RetrievalStatus.Failed)
+
+            onClicked:
+            {
+                createNewProjectPopup.open()
+            }
+            busy: manager.creatingNewProjectStatus == DF.RetrievalStatus.InProgress
+        }
+
+
+        Cura.SecondaryButton
+        {
+            id: upgradePlanButton
+
+            text: "Upgrade plan"
+            iconSource: UM.Theme.getIcon("LinkExternal")
+            visible: createNewProjectButtonVisible && !manager.userAccountCanCreateNewLibraryProject && (manager.retrievingProjectsStatus == DF.RetrievalStatus.Success || manager.retrievingProjectsStatus == DF.RetrievalStatus.Failed)
+            tooltip: "You have reached the maximum number of projects allowed by your subscription. Please upgrade to the Professional subscription to create more projects."
+            tooltipWidth: parent.width * 0.5
+
+            onClicked: Qt.openUrlExternally("https://ultimaker.com/software/ultimaker-essentials/sign-up-cura?utm_source=cura&utm_medium=software&utm_campaign=lib-max")
         }
-        busy: manager.creatingNewProjectStatus == DF.RetrievalStatus.InProgress
     }
 
     Item
@@ -76,19 +105,18 @@ Item
             {
                 id: digitalFactoryImage
                 anchors.horizontalCenter: parent.horizontalCenter
-                source: "../images/digital_factory.svg"
+                source: searchBar.text === "" ? "../images/digital_factory.svg" : "../images/projects_not_found.svg"
                 fillMode: Image.PreserveAspectFit
                 width: parent.width - 2 * UM.Theme.getSize("thick_margin").width
-                sourceSize.width: width
-                sourceSize.height: height
             }
 
             Label
             {
                 id: noLibraryProjectsLabel
                 anchors.horizontalCenter: parent.horizontalCenter
-                text: "It appears that you don't have any projects in the Library yet."
+                text: searchBar.text === "" ? "It appears that you don't have any projects in the Library yet." : "No projects found that match the search query."
                 font: UM.Theme.getFont("medium")
+                color: UM.Theme.getColor("text")
             }
 
             Cura.TertiaryButton
@@ -97,6 +125,7 @@ Item
                 anchors.horizontalCenter: parent.horizontalCenter
                 text: "Visit Digital Library"
                 onClicked:  Qt.openUrlExternally(CuraApplication.ultimakerDigitalFactoryUrl + "/app/library")
+                visible: searchBar.text === "" //Show the link to Digital Library when there are no projects in the user's Library.
             }
         }
     }
@@ -106,7 +135,7 @@ Item
         id: projectListContainer
         anchors
         {
-            top: selectProjectLabel.bottom
+            top: headerRow.bottom
             topMargin: UM.Theme.getSize("default_margin").height
             bottom: parent.bottom
             left: parent.left
diff --git a/plugins/DigitalLibrary/src/DigitalFactoryApiClient.py b/plugins/DigitalLibrary/src/DigitalFactoryApiClient.py
index b0e34adaba..ad87ea9b8a 100644
--- a/plugins/DigitalLibrary/src/DigitalFactoryApiClient.py
+++ b/plugins/DigitalLibrary/src/DigitalFactoryApiClient.py
@@ -22,6 +22,7 @@ from .DFFileUploader import DFFileUploader
 from .DFLibraryFileUploadRequest import DFLibraryFileUploadRequest
 from .DFLibraryFileUploadResponse import DFLibraryFileUploadResponse
 from .DFPrintJobUploadRequest import DFPrintJobUploadRequest
+from .DigitalFactoryFeatureBudgetResponse import DigitalFactoryFeatureBudgetResponse
 from .DigitalFactoryFileResponse import DigitalFactoryFileResponse
 from .DigitalFactoryProjectResponse import DigitalFactoryProjectResponse
 from .PaginationLinks import PaginationLinks
@@ -54,9 +55,67 @@ class DigitalFactoryApiClient:
         self._http = HttpRequestManager.getInstance()
         self._on_error = on_error
         self._file_uploader = None  # type: Optional[DFFileUploader]
+        self._library_max_private_projects: Optional[int] = None
 
         self._projects_pagination_mgr = PaginationManager(limit = projects_limit_per_page) if projects_limit_per_page else None  # type: Optional[PaginationManager]
 
+    def checkUserHasAccess(self, callback: Callable) -> None:
+        """Checks if the user has any sort of access to the digital library.
+           A user is considered to have access if the max-# of private projects is greater then 0 (or -1 for unlimited).
+        """
+
+        def callbackWrap(response: Optional[Any] = None, *args, **kwargs) -> None:
+            if (response is not None and isinstance(response, DigitalFactoryFeatureBudgetResponse) and
+                    response.library_max_private_projects is not None):
+                callback(
+                    response.library_max_private_projects == -1 or  # Note: -1 is unlimited
+                    response.library_max_private_projects > 0)
+                self._library_max_private_projects = response.library_max_private_projects
+            else:
+                Logger.warning(f"Digital Factory: Response is not a feature budget, likely an error: {str(response)}")
+                callback(False)
+
+        self._http.get(f"{self.CURA_API_ROOT}/feature_budgets",
+                       scope = self._scope,
+                       callback = self._parseCallback(callbackWrap, DigitalFactoryFeatureBudgetResponse, callbackWrap),
+                       error_callback = callbackWrap,
+                       timeout = self.DEFAULT_REQUEST_TIMEOUT)
+
+    def checkUserCanCreateNewLibraryProject(self, callback: Callable) -> None:
+        """
+        Checks if the user is allowed to create new library projects.
+        A user is allowed to create new library projects if the haven't reached their maximum allowed private projects.
+        """
+
+        def callbackWrap(response: Optional[Any] = None, *args, **kwargs) -> None:
+            if response is not None:
+                if isinstance(response, DigitalFactoryProjectResponse):  # The user has only one private project
+                    callback(True)
+                elif isinstance(response, list) and all(isinstance(r, DigitalFactoryProjectResponse) for r in response):
+                    callback(len(response) < cast(int, self._library_max_private_projects))
+                else:
+                    Logger.warning(f"Digital Factory: Incorrect response type received when requesting private projects: {str(response)}")
+                    callback(False)
+            else:
+                Logger.warning(f"Digital Factory: Response is empty, likely an error: {str(response)}")
+                callback(False)
+
+        if self._library_max_private_projects is not None and self._library_max_private_projects > 0:
+            # The user has a limit in the number of private projects they can create. Check whether they have already
+            # reached that limit.
+            # Note: Set the pagination manager to None when doing this get request, or else the next/previous links
+            #       of the pagination will become corrupted
+            url = f"{self.CURA_API_ROOT}/projects?shared=false&limit={self._library_max_private_projects}"
+            self._http.get(url,
+                           scope = self._scope,
+                           callback = self._parseCallback(callbackWrap, DigitalFactoryProjectResponse, callbackWrap, pagination_manager = None),
+                           error_callback = callbackWrap,
+                           timeout = self.DEFAULT_REQUEST_TIMEOUT)
+        else:
+            # If the limit is -1, then the user is allowed unlimited projects. If its 0 then they are not allowed to
+            # create any projects
+            callback(self._library_max_private_projects == -1)
+
     def getProject(self, library_project_id: str, on_finished: Callable[[DigitalFactoryProjectResponse], Any], failed: Callable) -> None:
         """
         Retrieves a digital factory project by its library project id.
@@ -73,7 +132,7 @@ class DigitalFactoryApiClient:
                        error_callback = failed,
                        timeout = self.DEFAULT_REQUEST_TIMEOUT)
 
-    def getProjectsFirstPage(self, on_finished: Callable[[List[DigitalFactoryProjectResponse]], Any], failed: Callable) -> None:
+    def getProjectsFirstPage(self, search_filter: str, on_finished: Callable[[List[DigitalFactoryProjectResponse]], Any], failed: Callable) -> None:
         """
         Retrieves digital factory projects for the user that is currently logged in.
 
@@ -81,13 +140,18 @@ class DigitalFactoryApiClient:
         according to the limit set in the pagination manager. If there is no projects pagination manager, this function
         leaves the project limit to the default set on the server side (999999).
 
+        :param search_filter: Text to filter the search results. If given an empty string, results are not filtered.
         :param on_finished: The function to be called after the result is parsed.
         :param failed: The function to be called if the request fails.
         """
-        url = "{}/projects".format(self.CURA_API_ROOT)
+        url = f"{self.CURA_API_ROOT}/projects"
+        query_character = "?"
         if self._projects_pagination_mgr:
             self._projects_pagination_mgr.reset()  # reset to clear all the links and response metadata
-            url += "?limit={}".format(self._projects_pagination_mgr.limit)
+            url += f"{query_character}limit={self._projects_pagination_mgr.limit}"
+            query_character = "&"
+        if search_filter != "":
+            url += f"{query_character}search={search_filter}"
 
         self._http.get(url,
                        scope = self._scope,
@@ -301,12 +365,10 @@ class DigitalFactoryApiClient:
         :param on_finished: The function to be called after the result is parsed.
         :param on_error: The function to be called if anything goes wrong.
         """
-
-        display_name = re.sub(r"[^a-zA-Z0-9- ./™®ö+']", " ", project_name)
-        Logger.log("i", "Attempt to create new DF project '{}'.".format(display_name))
+        Logger.log("i", "Attempt to create new DF project '{}'.".format(project_name))
 
         url = "{}/projects".format(self.CURA_API_ROOT)
-        data = json.dumps({"data": {"display_name": display_name}}).encode()
+        data = json.dumps({"data": {"display_name": project_name}}).encode()
         self._http.put(url,
                        scope = self._scope,
                        data = data,
diff --git a/plugins/DigitalLibrary/src/DigitalFactoryController.py b/plugins/DigitalLibrary/src/DigitalFactoryController.py
index 352a8c70f2..cd0f0be638 100644
--- a/plugins/DigitalLibrary/src/DigitalFactoryController.py
+++ b/plugins/DigitalLibrary/src/DigitalFactoryController.py
@@ -1,4 +1,6 @@
 # Copyright (c) 2021 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 import json
 import math
 import os
@@ -8,7 +10,7 @@ from enum import IntEnum
 from pathlib import Path
 from typing import Optional, List, Dict, Any, cast
 
-from PyQt5.QtCore import pyqtSignal, QObject, pyqtSlot, pyqtProperty, Q_ENUMS, QUrl
+from PyQt5.QtCore import pyqtSignal, QObject, pyqtSlot, pyqtProperty, Q_ENUMS, QTimer, QUrl
 from PyQt5.QtNetwork import QNetworkReply
 from PyQt5.QtQml import qmlRegisterType, qmlRegisterUncreatableType
 
@@ -89,6 +91,12 @@ class DigitalFactoryController(QObject):
     uploadFileError = Signal()
     uploadFileFinished = Signal()
 
+    """Signal to inform about the state of user access."""
+    userAccessStateChanged = pyqtSignal(bool)
+
+    """Signal to inform whether the user is allowed to create more Library projects."""
+    userCanCreateNewLibraryProjectChanged = pyqtSignal(bool)
+
     def __init__(self, application: CuraApplication) -> None:
         super().__init__(parent = None)
 
@@ -106,12 +114,18 @@ class DigitalFactoryController(QObject):
         self._has_more_projects_to_load = False
 
         self._account = self._application.getInstance().getCuraAPI().account  # type: Account
+        self._account.loginStateChanged.connect(self._onLoginStateChanged)
         self._current_workspace_information = CuraApplication.getInstance().getCurrentWorkspaceInformation()
 
         # Initialize the project model
         self._project_model = DigitalFactoryProjectModel()
         self._selected_project_idx = -1
         self._project_creation_error_text = "Something went wrong while creating a new project. Please try again."
+        self._project_filter = ""
+        self._project_filter_change_timer = QTimer()
+        self._project_filter_change_timer.setInterval(200)
+        self._project_filter_change_timer.setSingleShot(True)
+        self._project_filter_change_timer.timeout.connect(self._applyProjectFilter)
 
         # Initialize the file model
         self._file_model = DigitalFactoryFileModel()
@@ -131,6 +145,9 @@ class DigitalFactoryController(QObject):
         self._application.engineCreatedSignal.connect(self._onEngineCreated)
         self._application.initializationFinished.connect(self._applicationInitializationFinished)
 
+        self._user_has_access = False
+        self._user_account_can_create_new_project = False
+
     def clear(self) -> None:
         self._project_model.clearProjects()
         self._api.clear()
@@ -143,16 +160,22 @@ class DigitalFactoryController(QObject):
 
         self.setSelectedProjectIndex(-1)
 
+    def _onLoginStateChanged(self, logged_in: bool) -> None:
+        def callback(has_access, **kwargs):
+            self._user_has_access = has_access
+            self.userAccessStateChanged.emit(logged_in)
+
+        self._api.checkUserHasAccess(callback)
+
     def userAccountHasLibraryAccess(self) -> bool:
         """
         Checks whether the currently logged in user account has access to the Digital Library
 
         :return: True if the user account has Digital Library access, else False
         """
-        subscriptions = []  # type: List[Dict[str, Any]]
-        if self._account.userProfile:
-            subscriptions = self._account.userProfile.get("subscriptions", [])
-        return len(subscriptions) > 0
+        if self._user_has_access:
+            self._api.checkUserCanCreateNewLibraryProject(callback = self.setCanCreateNewLibraryProject)
+        return self._user_has_access
 
     def initialize(self, preselected_project_id: Optional[str] = None) -> None:
         self.clear()
@@ -162,7 +185,7 @@ class DigitalFactoryController(QObject):
             if preselected_project_id:
                 self._api.getProject(preselected_project_id, on_finished = self.setProjectAsPreselected, failed = self._onGetProjectFailed)
             else:
-                self._api.getProjectsFirstPage(on_finished = self._onGetProjectsFirstPageFinished, failed = self._onGetProjectsFailed)
+                self._api.getProjectsFirstPage(search_filter = self._project_filter, on_finished = self._onGetProjectsFirstPageFinished, failed = self._onGetProjectsFailed)
 
     def setProjectAsPreselected(self, df_project: DigitalFactoryProjectResponse) -> None:
         """
@@ -288,6 +311,38 @@ class DigitalFactoryController(QObject):
             self._selected_file_indices = file_indices
             self.selectedFileIndicesChanged.emit(file_indices)
 
+    def setProjectFilter(self, new_filter: str) -> None:
+        """
+        Called when the user wants to change the search filter for projects.
+
+        The filter is not immediately applied. There is some delay to allow the user to finish typing.
+        :param new_filter: The new filter that the user wants to apply.
+        """
+        self._project_filter = new_filter
+        self._project_filter_change_timer.start()
+
+    """
+    Signal to notify Qt that the applied filter has changed.
+    """
+    projectFilterChanged = pyqtSignal()
+
+    @pyqtProperty(str, notify = projectFilterChanged, fset = setProjectFilter)
+    def projectFilter(self) -> str:
+        """
+        The current search filter being applied to the project list.
+        :return: The current search filter being applied to the project list.
+        """
+        return self._project_filter
+
+    def _applyProjectFilter(self) -> None:
+        """
+        Actually apply the current filter to search for projects with the user-defined search string.
+        :return:
+        """
+        self.clear()
+        self.projectFilterChanged.emit()
+        self._api.getProjectsFirstPage(search_filter = self._project_filter, on_finished = self._onGetProjectsFirstPageFinished, failed = self._onGetProjectsFailed)
+
     @pyqtProperty(QObject, constant = True)
     def digitalFactoryProjectModel(self) -> "DigitalFactoryProjectModel":
         return self._project_model
@@ -502,7 +557,8 @@ class DigitalFactoryController(QObject):
             # false, we also need to clean it from the projects model
             self._project_model.clearProjects()
             self.setSelectedProjectIndex(-1)
-            self._api.getProjectsFirstPage(on_finished = self._onGetProjectsFirstPageFinished, failed = self._onGetProjectsFailed)
+            self._api.getProjectsFirstPage(search_filter = self._project_filter, on_finished = self._onGetProjectsFirstPageFinished, failed = self._onGetProjectsFailed)
+            self._api.checkUserCanCreateNewLibraryProject(callback = self.setCanCreateNewLibraryProject)
             self.setRetrievingProjectsStatus(RetrievalStatus.InProgress)
         self._has_preselected_project = new_has_preselected_project
         self.preselectedProjectChanged.emit()
@@ -511,6 +567,14 @@ class DigitalFactoryController(QObject):
     def hasPreselectedProject(self) -> bool:
         return self._has_preselected_project
 
+    def setCanCreateNewLibraryProject(self, can_create_new_library_project: bool) -> None:
+        self._user_account_can_create_new_project = can_create_new_library_project
+        self.userCanCreateNewLibraryProjectChanged.emit(self._user_account_can_create_new_project)
+
+    @pyqtProperty(bool, fset = setCanCreateNewLibraryProject, notify = userCanCreateNewLibraryProjectChanged)
+    def userAccountCanCreateNewLibraryProject(self) -> bool:
+        return self._user_account_can_create_new_project
+
     @pyqtSlot(str, "QStringList")
     def saveFileToSelectedProject(self, filename: str, formats: List[str]) -> None:
         """
diff --git a/plugins/DigitalLibrary/src/DigitalFactoryFeatureBudgetResponse.py b/plugins/DigitalLibrary/src/DigitalFactoryFeatureBudgetResponse.py
new file mode 100644
index 0000000000..192f58685a
--- /dev/null
+++ b/plugins/DigitalLibrary/src/DigitalFactoryFeatureBudgetResponse.py
@@ -0,0 +1,43 @@
+# Copyright (c) 2021 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from .BaseModel import BaseModel
+from typing import Optional
+
+
+class DigitalFactoryFeatureBudgetResponse(BaseModel):
+    """Class representing the capabilities of a user account for Digital Library.
+       NOTE: For each max_..._projects fields, '-1' means unlimited!
+    """
+
+    def __init__(self,
+                 library_can_use_business_value: Optional[bool] = False,
+                 library_can_use_comments: Optional[bool] = False,
+                 library_can_use_status: Optional[bool] = False,
+                 library_can_use_tags: Optional[bool] = False,
+                 library_can_use_technical_requirements: Optional[bool] = False,
+                 library_max_organization_shared_projects: Optional[int] = None,  # -1 means unlimited
+                 library_max_private_projects: Optional[int] = None,  # -1 means unlimited
+                 library_max_team_shared_projects: Optional[int] = None,  # -1 means unlimited
+                 **kwargs) -> None:
+
+        self.library_can_use_business_value = library_can_use_business_value
+        self.library_can_use_comments = library_can_use_comments
+        self.library_can_use_status = library_can_use_status
+        self.library_can_use_tags = library_can_use_tags
+        self.library_can_use_technical_requirements = library_can_use_technical_requirements
+        self.library_max_organization_shared_projects = library_max_organization_shared_projects  # -1 means unlimited
+        self.library_max_private_projects = library_max_private_projects  # -1 means unlimited
+        self.library_max_team_shared_projects = library_max_team_shared_projects  # -1 means unlimited
+        super().__init__(**kwargs)
+
+    def __repr__(self) -> str:
+        return "max private: {}, max org: {}, max team: {}".format(
+            self.library_max_private_projects,
+            self.library_max_organization_shared_projects,
+            self.library_max_team_shared_projects)
+
+    # Validates the model, raising an exception if the model is invalid.
+    def validate(self) -> None:
+        super().validate()
+        # No validation for now, as the response can be "data: []", which should be interpreted as all False and 0's
diff --git a/plugins/DigitalLibrary/src/DigitalFactoryFileProvider.py b/plugins/DigitalLibrary/src/DigitalFactoryFileProvider.py
index 7a544afaa1..65a727e21a 100644
--- a/plugins/DigitalLibrary/src/DigitalFactoryFileProvider.py
+++ b/plugins/DigitalLibrary/src/DigitalFactoryFileProvider.py
@@ -22,7 +22,7 @@ class DigitalFactoryFileProvider(FileProvider):
         self._dialog = None
 
         self._account = CuraApplication.getInstance().getCuraAPI().account  # type: Account
-        self._account.loginStateChanged.connect(self._onLoginStateChanged)
+        self._controller.userAccessStateChanged.connect(self._onUserAccessStateChanged)
         self.enabled = self._account.isLoggedIn and self._controller.userAccountHasLibraryAccess()
         self.priority = 10
 
@@ -53,7 +53,7 @@ class DigitalFactoryFileProvider(FileProvider):
         if not self._dialog:
             Logger.log("e", "Unable to create the Digital Library Open dialog.")
 
-    def _onLoginStateChanged(self, logged_in: bool) -> None:
+    def _onUserAccessStateChanged(self, logged_in: bool) -> None:
         """
         Sets the enabled status of the DigitalFactoryFileProvider according to the account's login status
         :param logged_in: The new login status
diff --git a/plugins/DigitalLibrary/src/DigitalFactoryOutputDevice.py b/plugins/DigitalLibrary/src/DigitalFactoryOutputDevice.py
index 202223f9b4..70e3ac34f2 100644
--- a/plugins/DigitalLibrary/src/DigitalFactoryOutputDevice.py
+++ b/plugins/DigitalLibrary/src/DigitalFactoryOutputDevice.py
@@ -45,7 +45,7 @@ class DigitalFactoryOutputDevice(ProjectOutputDevice):
         self._writing = False
 
         self._account = CuraApplication.getInstance().getCuraAPI().account  # type: Account
-        self._account.loginStateChanged.connect(self._onLoginStateChanged)
+        self._controller.userAccessStateChanged.connect(self._onUserAccessStateChanged)
         self.enabled = self._account.isLoggedIn and self._controller.userAccountHasLibraryAccess()
 
         self._current_workspace_information = CuraApplication.getInstance().getCurrentWorkspaceInformation()
@@ -97,7 +97,7 @@ class DigitalFactoryOutputDevice(ProjectOutputDevice):
         if not self._dialog:
             Logger.log("e", "Unable to create the Digital Library Save dialog.")
 
-    def _onLoginStateChanged(self, logged_in: bool) -> None:
+    def _onUserAccessStateChanged(self, logged_in: bool) -> None:
         """
         Sets the enabled status of the DigitalFactoryOutputDevice according to the account's login status
         :param logged_in: The new login status
diff --git a/plugins/DigitalLibrary/tests/TestDigitalLibraryApiClient.py b/plugins/DigitalLibrary/tests/TestDigitalLibraryApiClient.py
index ba0a0b15b4..9751838ddf 100644
--- a/plugins/DigitalLibrary/tests/TestDigitalLibraryApiClient.py
+++ b/plugins/DigitalLibrary/tests/TestDigitalLibraryApiClient.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2021 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
 from unittest.mock import MagicMock
 
 import pytest
@@ -37,7 +40,7 @@ def test_getProjectsFirstPage(api_client):
     failed_callback = MagicMock()
 
     # Call
-    api_client.getProjectsFirstPage(on_finished = finished_callback, failed = failed_callback)
+    api_client.getProjectsFirstPage(search_filter = "filter", on_finished = finished_callback, failed = failed_callback)
 
     # Asserts
     pagination_manager.reset.assert_called_once()  # Should be called since we asked for new set of projects
@@ -45,16 +48,16 @@ def test_getProjectsFirstPage(api_client):
     args = http_manager.get.call_args_list[0]
 
     # Ensure that it's called with the right limit
-    assert args[0][0] == "https://api.ultimaker.com/cura/v1/projects?limit=20"
+    assert args[0][0] == "https://api.ultimaker.com/cura/v1/projects?limit=20&search=filter"
 
     # Change the limit & try again
     http_manager.get.reset_mock()
     pagination_manager.limit = 80
-    api_client.getProjectsFirstPage(on_finished = finished_callback, failed = failed_callback)
+    api_client.getProjectsFirstPage(search_filter = "filter", on_finished = finished_callback, failed = failed_callback)
     args = http_manager.get.call_args_list[0]
 
     # Ensure that it's called with the right limit
-    assert args[0][0] == "https://api.ultimaker.com/cura/v1/projects?limit=80"
+    assert args[0][0] == "https://api.ultimaker.com/cura/v1/projects?limit=80&search=filter"
 
 
 def test_getMoreProjects_noNewProjects(api_client):
diff --git a/plugins/PerObjectSettingsTool/PerObjectSettingsTool.py b/plugins/PerObjectSettingsTool/PerObjectSettingsTool.py
index ab2bcaad5b..e80acc8d94 100644
--- a/plugins/PerObjectSettingsTool/PerObjectSettingsTool.py
+++ b/plugins/PerObjectSettingsTool/PerObjectSettingsTool.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from UM.Logger import Logger
@@ -103,20 +103,27 @@ class PerObjectSettingsTool(Tool):
                     new_instance.resetState()  # Ensure that the state is not seen as a user state.
                     settings.addInstance(new_instance)
 
-        for property_key in ["top_bottom_thickness", "wall_thickness", "wall_line_count"]:
+        # Override some settings to ensure that the infill mesh by default adds no skin or walls. Or remove them if not an infill mesh.
+        specialized_settings = {
+            "top_bottom_thickness": 0,
+            "top_thickness": "=top_bottom_thickness",
+            "bottom_thickness": "=top_bottom_thickness",
+            "top_layers": "=0 if infill_sparse_density == 100 else math.ceil(round(top_thickness / resolveOrValue('layer_height'), 4))",
+            "bottom_layers": "=0 if infill_sparse_density == 100 else math.ceil(round(bottom_thickness / resolveOrValue('layer_height'), 4))",
+            "wall_thickness": 0,
+            "wall_line_count": "=max(1, round((wall_thickness - wall_line_width_0) / wall_line_width_x) + 1) if wall_thickness != 0 else 0"
+        }
+        for property_key in specialized_settings:
             if mesh_type == "infill_mesh":
                 if settings.getInstance(property_key) is None:
                     definition = stack.getSettingDefinition(property_key)
                     new_instance = SettingInstance(definition, settings)
-                    # We just want the wall_line count to be there in case it was overriden in the global stack.
-                    # as such, we don't need to set a value.
-                    if property_key != "wall_line_count":
-                        new_instance.setProperty("value", 0)
+                    new_instance.setProperty("value", specialized_settings[property_key])
                     new_instance.resetState()  # Ensure that the state is not seen as a user state.
                     settings.addInstance(new_instance)
                     settings_visibility_changed = True
 
-            elif old_mesh_type == "infill_mesh" and settings.getInstance(property_key) and (settings.getProperty(property_key, "value") == 0 or property_key == "wall_line_count"):
+            elif old_mesh_type == "infill_mesh" and settings.getInstance(property_key) and property_key in specialized_settings:
                 settings.removeInstance(property_key)
                 settings_visibility_changed = True
 
diff --git a/plugins/PrepareStage/PrepareMenu.qml b/plugins/PrepareStage/PrepareMenu.qml
index 2d3814309e..cf7665bda6 100644
--- a/plugins/PrepareStage/PrepareMenu.qml
+++ b/plugins/PrepareStage/PrepareMenu.qml
@@ -1,7 +1,7 @@
-// Copyright (c) 2018 Ultimaker B.V.
+// Copyright (c) 2021 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
-import QtQuick 2.7
+import QtQuick 2.9
 import QtQuick.Layouts 1.1
 import QtQuick.Controls 2.3
 
@@ -13,6 +13,8 @@ Item
 {
     id: prepareMenu
 
+    property var fileProviderModel: CuraApplication.getFileProviderModel()
+
     UM.I18nCatalog
     {
         id: catalog
@@ -36,9 +38,9 @@ Item
         {
             id: itemRow
 
-            anchors.left: openFileButton.right
+            anchors.left: parent.left
             anchors.right: parent.right
-            anchors.leftMargin: UM.Theme.getSize("default_margin").width
+            anchors.leftMargin: UM.Theme.getSize("default_margin").width + openFileButton.width + openFileMenu.width
             property int machineSelectorWidth: Math.round((width - printSetupSelectorItem.width) / 3)
 
             height: parent.height
@@ -74,22 +76,116 @@ Item
             }
         }
 
+        //Pop-up shown when there are multiple items to select from.
+        Cura.ExpandablePopup
+        {
+            id: openFileMenu
+            visible: prepareMenu.fileProviderModel.count > 1
+
+            contentAlignment: Cura.ExpandablePopup.ContentAlignment.AlignLeft
+            headerCornerSide: Cura.RoundedRectangle.Direction.All
+            headerPadding: Math.round((parent.height - UM.Theme.getSize("button_icon").height) / 2)
+            contentPadding: UM.Theme.getSize("default_lining").width
+            enabled: visible
+
+            height: parent.height
+            width: visible ? (headerPadding * 3 + UM.Theme.getSize("button_icon").height + iconSize) : 0
+
+            headerItem: UM.RecolorImage
+            {
+                id: menuIcon
+                source: UM.Theme.getIcon("Folder", "medium")
+                color: UM.Theme.getColor("icon")
+
+                sourceSize.height: height
+            }
+
+            contentItem: Item
+            {
+                id: popup
+
+                Column
+                {
+                    id: openProviderColumn
+
+                    //The column doesn't automatically listen to its children rect if the children change internally, so we need to explicitly update the size.
+                    onChildrenRectChanged:
+                    {
+                        popup.height = childrenRect.height
+                        popup.width = childrenRect.width
+                    }
+                    onPositioningComplete:
+                    {
+                        popup.height = childrenRect.height
+                        popup.width = childrenRect.width
+                    }
+
+                    Repeater
+                    {
+                        model: prepareMenu.fileProviderModel
+                        delegate: Button
+                        {
+                            leftPadding: UM.Theme.getSize("default_margin").width
+                            rightPadding: UM.Theme.getSize("default_margin").width
+                            width: contentItem.width + leftPadding + rightPadding
+                            height: UM.Theme.getSize("action_button").height
+                            hoverEnabled: true
+
+                            contentItem: Label
+                            {
+                                text: model.displayText
+                                color: UM.Theme.getColor("text")
+                                font: UM.Theme.getFont("medium")
+                                renderType: Text.NativeRendering
+                                verticalAlignment: Text.AlignVCenter
+
+                                width: contentWidth
+                                height: parent.height
+                            }
+
+                            onClicked:
+                            {
+                                if(model.index == 0) //The 0th element is the "From Disk" option, which should activate the open local file dialog.
+                                {
+                                    Cura.Actions.open.trigger();
+                                }
+                                else
+                                {
+                                    prepareMenu.fileProviderModel.trigger(model.name);
+                                }
+                            }
+
+                            background: Rectangle
+                            {
+                                color: parent.hovered ? UM.Theme.getColor("action_button_hovered") : "transparent"
+                                radius: UM.Theme.getSize("action_button_radius").width
+                                width: popup.width
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        //If there is just a single item, show a button instead that directly chooses the one option.
         Button
         {
             id: openFileButton
-            height: UM.Theme.getSize("stage_menu").height
-            width: UM.Theme.getSize("stage_menu").height
+            visible: prepareMenu.fileProviderModel.count <= 1
+
+            height: parent.height
+            width: visible ? height : 0 //Square button (and don't take up space if invisible).
             onClicked: Cura.Actions.open.trigger()
+            enabled: visible && prepareMenu.fileProviderModel.count > 0
             hoverEnabled: true
 
             contentItem: Item
             {
-                anchors.fill: parent
                 UM.RecolorImage
                 {
                     id: buttonIcon
-                    anchors.centerIn: parent
                     source: UM.Theme.getIcon("Folder", "medium")
+                    anchors.centerIn: parent
                     width: UM.Theme.getSize("button_icon").width
                     height: UM.Theme.getSize("button_icon").height
                     color: UM.Theme.getColor("icon")
@@ -101,8 +197,8 @@ Item
             background: Rectangle
             {
                 id: background
-                height: UM.Theme.getSize("stage_menu").height
-                width: UM.Theme.getSize("stage_menu").height
+                height: parent.height
+                width: parent.width
                 border.color: UM.Theme.getColor("lining")
                 border.width: UM.Theme.getSize("default_lining").width
 
diff --git a/plugins/SimulationView/SimulationViewMenuComponent.qml b/plugins/SimulationView/SimulationViewMenuComponent.qml
index 86e686e0fc..6dde44c8ae 100644
--- a/plugins/SimulationView/SimulationViewMenuComponent.qml
+++ b/plugins/SimulationView/SimulationViewMenuComponent.qml
@@ -203,16 +203,16 @@ Cura.ExpandableComponent
 
                 style: UM.Theme.styles.checkbox
 
-
-                UM.RecolorImage
+                Rectangle
                 {
                     id: swatch
                     anchors.verticalCenter: parent.verticalCenter
                     anchors.right: extrudersModelCheckBox.right
                     width: UM.Theme.getSize("layerview_legend_size").width
                     height: UM.Theme.getSize("layerview_legend_size").height
-                    source: UM.Theme.getIcon("Extruder", "medium")
                     color: model.color
+                    border.width: UM.Theme.getSize("default_lining").width
+                    border.color: UM.Theme.getColor("lining")
                 }
 
                 Label
diff --git a/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py b/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py
index 1884efec46..9eaa133ef5 100644
--- a/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py
+++ b/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py
@@ -256,7 +256,16 @@ class CloudOutputDevice(UltimakerNetworkedPrinterOutputDevice):
         """
         self._uploaded_print_job = self._pre_upload_print_job
         self._progress.hide()
-        PrintJobUploadSuccessMessage().show()
+        message = PrintJobUploadSuccessMessage()
+        message.addAction("monitor print",
+                          name=I18N_CATALOG.i18nc("@action:button", "Monitor print"),
+                          icon="",
+                          description=I18N_CATALOG.i18nc("@action:tooltip", "Track the print in Ultimaker Digital Factory"),
+                          button_align=message.ActionButtonAlignment.ALIGN_RIGHT)
+        df_url = f"https://digitalfactory.ultimaker.com/app/jobs/{self._cluster.cluster_id}?utm_source=cura&utm_medium=software&utm_campaign=monitor-button"
+        message.pyQtActionTriggered.connect(lambda message, action: (QDesktopServices.openUrl(QUrl(df_url)), message.hide()))
+
+        message.show()
         self.writeFinished.emit()
 
     def _onPrintUploadSpecificError(self, reply: "QNetworkReply", _: "QNetworkReply.NetworkError"):
diff --git a/plugins/UM3NetworkPrinting/src/Messages/PrintJobUploadSuccessMessage.py b/plugins/UM3NetworkPrinting/src/Messages/PrintJobUploadSuccessMessage.py
index aa64f338dd..aa3d72ccd8 100644
--- a/plugins/UM3NetworkPrinting/src/Messages/PrintJobUploadSuccessMessage.py
+++ b/plugins/UM3NetworkPrinting/src/Messages/PrintJobUploadSuccessMessage.py
@@ -13,6 +13,5 @@ class PrintJobUploadSuccessMessage(Message):
     def __init__(self) -> None:
         super().__init__(
             text = I18N_CATALOG.i18nc("@info:status", "Print job was successfully sent to the printer."),
-            title = I18N_CATALOG.i18nc("@info:title", "Data Sent"),
-            lifetime = 5
+            title = I18N_CATALOG.i18nc("@info:title", "Data Sent")
         )
diff --git a/resources/definitions/anycubic_i3_mega_s.def.json b/resources/definitions/anycubic_i3_mega_s.def.json
index f0c786a393..a0e83627c4 100644
--- a/resources/definitions/anycubic_i3_mega_s.def.json
+++ b/resources/definitions/anycubic_i3_mega_s.def.json
@@ -115,6 +115,7 @@
         "skirt_gap": { "value": 5.0 },
         "skirt_line_count": { "value": 4 },
 
+        "meshfix_maximum_deviation": { "value": 0.05 },
        
         "support_angle": { "value": "math.floor(math.degrees(math.atan(line_width / 2.0 / layer_height)))" },
         "support_pattern": { "value": "'zigzag'" },
diff --git a/resources/definitions/anycubic_kossel_linear_plus.def.json b/resources/definitions/anycubic_kossel_linear_plus.def.json
index a4aeac75a0..9683cf61cf 100644
--- a/resources/definitions/anycubic_kossel_linear_plus.def.json
+++ b/resources/definitions/anycubic_kossel_linear_plus.def.json
@@ -5,6 +5,7 @@
     "metadata": {
         "visible": true,
         "platform": "kossel_pro_build_platform.3mf",
+        "platform_offset": [0, -0.25, 0],
         "machine_extruder_trains": {
             "0": "anycubic_kossel_extruder_0"
         }
diff --git a/resources/definitions/atom2.def.json b/resources/definitions/atom2.def.json
new file mode 100644
index 0000000000..d7a26546d8
--- /dev/null
+++ b/resources/definitions/atom2.def.json
@@ -0,0 +1,35 @@
+{
+  "name": "Atom 2",
+  "version": 2,
+  "inherits": "fdmprinter",
+  "metadata": {
+    "visible": true,
+    "author": "Victor (Yu Chieh) Lin",
+    "manufacturer": "Layer One",
+    "file_formats": "text/x-gcode",
+    "platform_offset": [0,0,0],
+    "machine_extruder_trains":  { "0": "atom2_extruder_0"
+    }
+  },
+
+  "overrides": {
+    "machine_name":           { "default_value": "Atom 2" },
+    "machine_shape":          { "default_value": "elliptic" },
+    "machine_width":          { "default_value": 210 },
+    "machine_depth":          { "default_value": 210 },
+    "machine_height":         { "default_value": 320 },
+    "machine_extruder_count": { "default_value": 1 },
+    "machine_heated_bed":     { "default_value": false },
+    "machine_center_is_zero": { "default_value": true },
+
+    "machine_start_gcode":    { "default_value": "G21\nG90 \nM107\nG28\nG92 E0\nG1 F200 E3\nG92 E0" },
+    "machine_end_gcode":      { "default_value": "M104 S0\nG28\nG91\nG1 E-6 F300\nM84\nG90" },
+
+    "layer_height": { "default_value": 0.2 },
+    "default_material_print_temperature": { "default_value": 210 },
+    "speed_print": { "default_value": 32 },
+    "optimize_wall_printing_order": { "value": "True" },
+    "infill_sparse_density": { "default_value": 10 },
+    "brim_width": { "default_value": 4 }
+  }
+}
diff --git a/resources/definitions/biqu_base.def.json b/resources/definitions/biqu_base.def.json
index af5c2465e2..29aa69ec54 100755
--- a/resources/definitions/biqu_base.def.json
+++ b/resources/definitions/biqu_base.def.json
@@ -85,8 +85,8 @@
         "material_flow": { "value": 100 },
         "travel_compensate_overlapping_walls_0_enabled": { "value": "False" },
 
-        "z_seam_type": { "value": "'back'" },
-        "z_seam_corner": { "value": "'z_seam_corner_weighted'" },
+        "z_seam_type": { "value": "'sharpest_corner'" },
+        "z_seam_corner": { "value": "'z_seam_corner_inner'" },
 
         "infill_line_width": { "value": "line_width * 1.2" },
         "infill_sparse_density": { "value": "20" },
@@ -156,7 +156,7 @@
 
         "support_interface_enable": { "value": true },
         "support_interface_height": { "value": "layer_height * 4" },
-        "support_interface_density": { "value": 33.333 },
+        "support_interface_density": { "value": 75 },
         "support_interface_pattern": { "value": "'grid'" },
         "support_interface_skip_height": { "value": 0.2 },
         "minimum_support_area": { "value": 2 },
diff --git a/resources/definitions/biqu_bx_abl.def.json b/resources/definitions/biqu_bx_abl.def.json
new file mode 100755
index 0000000000..af4f50dec0
--- /dev/null
+++ b/resources/definitions/biqu_bx_abl.def.json
@@ -0,0 +1,51 @@
+{
+    "name": "Biqu BX",
+    "version": 2,
+    "inherits": "biqu_base",
+    "metadata": {
+        "quality_definition": "biqu_base",
+        "visible": true,
+        "has_machine_materials": true,
+        "platform": "BIQU_BX_PLATE.stl",
+        "platform_offset": [
+            7,
+            -7.4,
+            -3
+        ]
+    },
+    "overrides": {
+        "coasting_enable": { "value": false },
+        "retraction_amount": { "value": 1 },
+        "retraction_speed": { "value": 40 },
+        "retraction_extrusion_window": { "value": 1 },
+        "retract_at_layer_change": { "value": true },
+        "support_enable": { "value": false },
+        "support_structure": { "value": "'normal'" },
+        "support_type": { "value": "'buildplate'" },
+        "support_angle": { "value": 45 },
+        "support_infill_rate": { "value": 15 },
+        "infill_overlap": { "value": 15.0 },
+        "skin_overlap": { "value": 20.0 },
+        "fill_outline_gaps": { "value": true },
+        "filter_out_tiny_gaps": { "value": true },
+        "roofing_layer_count": { "value": 2 },
+        "xy_offset_layer_0": { "value": -0.1 },
+        "speed_print": { "value": 50 },
+        "machine_name": { "default_value": "Biqu BX" },
+        "machine_width": { "value": 250 },
+        "machine_depth": { "value": 250 },
+        "machine_height": { "value": 250 },
+        "machine_head_with_fans_polygon": { "default_value": [
+                [-33, 35],
+                [-33, -23],
+                [33, -23],
+                [33, 35]
+            ]
+        },
+        "machine_start_gcode": {
+            "default_value": "; BIQU BX Start G-code\r\n; For inforation on how to tune this profile and get the\r\n; most out of your BX visit: https:\/\/github.com\/looxonline\/Marlin\r\n; For the official github site visit: https:\/\/github.com\/bigtreetech\/BIQU-BX\r\n\r\nM117 Initial homing sequence.                         ; Home so that the probe is positioned to heat\r\nG28\r\n\r\nM117 Probe heating position\r\nG0 X65 Y5 Z1                                                   ; Move the probe to the heating position.\r\n\r\nM117 Getting the heaters up to temp!\r\nM104 S140                                                          ; Set Extruder temperature, no wait\r\nM140 S60                                                            ; Set Heat Bed temperature\r\nM190 S60                                                            ; Wait for Heat Bed temperature\r\n\r\nM117 Waiting for probe to warm!                        ; Wait another 90s for the probe to absorb heat.\r\nG4 S90 \r\n\r\nM117 Post warming re-home\r\nG28                                                                      ; Home all axes again after warming\r\n\r\nM117 Z-Dance of my people\r\nG34\r\n\r\nM117 ABL Probing\r\nG29\r\n\r\nM900 K0 L0 T0                                 ;Edit the K and L values if you have calibrated a k factor for your filament\r\nM900 T0 S0\r\n\r\nG1 Z2.0 F3000                                        ; Move Z Axis up little to prevent scratching of Heat Bed\r\nG1 X4.1 Y10 Z0.3 F5000.0                      ; Move to start position\r\n\r\nM117 Getting the extruder up to temp\r\nM140 S{material_bed_temperature_layer_0}      ; Set Heat Bed temperature\r\nM104 S{material_print_temperature_layer_0}    ; Set Extruder temperature\r\nM109 S{material_print_temperature_layer_0}    ; Wait for Extruder temperature\r\nM190 S{material_bed_temperature_layer_0}      ; Wait for Heat Bed temperature\r\n\r\nG92 E0                                        ; Reset Extruder\r\nM117 Purging\r\nG1 X4.1 Y200.0 Z0.3 F1500.0 E15               ; Draw the first line\r\nG1 X4.4 Y200.0 Z0.3 F5000.0                   ; Move to side a little\r\nG1 X4.4 Y20 Z0.3 F1500.0 E30                  ; Draw the second line\r\nG92 E0                                        ; Reset Extruder\r\nM117 Lets make\r\nG1 X8 Y20 Z0.3 F5000.0                        ; Move over to prevent blob squish"
+        },
+
+        "gantry_height": { "value": 27.5 }
+    }
+}
diff --git a/resources/definitions/flsun_sr.def.json b/resources/definitions/flsun_sr.def.json
new file mode 100644
index 0000000000..9f68c129bd
--- /dev/null
+++ b/resources/definitions/flsun_sr.def.json
@@ -0,0 +1,76 @@
+{
+    "version": 2,
+    "name": "FlSun SuperRacer",
+    "inherits": "fdmprinter",
+    "metadata": {
+        "visible": true,
+        "author": "Thushan Fernando",
+        "manufacturer": "Flsun",
+        "platform": "flsun_sr.3mf",
+        "file_formats": "text/x-gcode",
+        "has_materials": true,
+        "has_machine_quality": false,
+        "preferred_quality_type": "fast",
+        "machine_extruder_trains": {
+            "0": "flsun_sr_extruder_0"
+        }
+    },
+    "overrides": {
+        "machine_extruder_count": {
+            "default_value": 1
+        },
+        "retraction_enable": {
+            "default_value": true
+        },
+        "machine_heated_bed": {
+            "default_value": true
+        },
+        "machine_width": {
+            "default_value": 260
+        },
+        "machine_depth": {
+            "default_value": 260
+        },
+        "machine_height": {
+            "default_value": 330
+        },
+        "machine_center_is_zero": {
+            "default_value": true
+        },
+        "machine_head_with_fans_polygon": {
+            "default_value": [
+                [0, 0],
+                [0, 0],
+                [0, 0],
+                [0, 0]
+            ]
+        },
+        "z_seam_type": {
+            "value": "'back'"
+        },
+        "gantry_height": {
+            "value": "0"
+        },
+        "machine_shape": {
+            "default_value": "elliptic"
+        },
+        "machine_nozzle_size": {
+            "default_value": 0.4
+        },
+        "material_diameter": {
+            "default_value": 1.75
+        },
+        "infill_sparse_density": {
+            "default_value": 15
+        },
+        "machine_start_gcode": {
+            "default_value": "G21\nG90\nM82\nM107 T0\nM140 S{material_bed_temperature}\nM104 S{material_print_temperature} T0\nM190 S{material_bed_temperature}\nM109 S{material_print_temperature} T0\nG28\nG92 E0\n"
+        },
+        "machine_end_gcode": {
+            "default_value": "M107 T0\nM104 S0\nM104 S0 T1\nM140 S0\nG92 E0\nG91\nG1 E-1 F300 \nG1 Z+0.5 E-5 F6000\nG28 X0 Y0\nG90 ;absolute positioning\n"
+        },
+        "machine_gcode_flavor": {
+            "default_value": "RepRap (Marlin/Sprinter)"
+        }
+    }
+}
diff --git a/resources/definitions/geeetech_a30.def.json b/resources/definitions/geeetech_a30.def.json
index 1f08d37445..d4f7df139f 100644
--- a/resources/definitions/geeetech_a30.def.json
+++ b/resources/definitions/geeetech_a30.def.json
@@ -4,7 +4,7 @@
     "inherits": "fdmprinter",
     "metadata": {
         "author": "William & Cataldo URSO",
-        "manufacturer": "Shenzhen Geeetech Technology",
+        "manufacturer": "Geeetech",
         "file_formats": "text/x-gcode",
         "visible": true,
         "has_materials": true,
diff --git a/resources/definitions/mp_mini_delta.def.json b/resources/definitions/mp_mini_delta.def.json
index bbdca2c8f8..eda45bb413 100644
--- a/resources/definitions/mp_mini_delta.def.json
+++ b/resources/definitions/mp_mini_delta.def.json
@@ -3,7 +3,7 @@
     "name": "MP Mini Delta",
     "inherits": "fdmprinter",
     "metadata": {
-        "author": "MPMD Facebook Group",
+        "author": "MPMD V1 Facebook Group",
         "manufacturer": "Monoprice",
         "file_formats": "text/x-gcode",
         "platform": "mp_mini_delta_platform.3mf",
@@ -25,7 +25,7 @@
     "overrides": {
         "machine_start_gcode":
         {
-            "default_value": ";MPMD Basic Calibration Tutorial: \n; https://www.thingiverse.com/thing:3892011 \n; \n; If you want to put calibration values in your \n; Start Gcode, put them here. \n; \n;If on stock firmware, at minimum, consider adding \n;M665 R here since there is a firmware bug.  \n; \n; Calibration part ends here \n; \nG90 ; switch to absolute positioning \nG92 E0 ; reset extrusion distance \nG1 E20 F200 ; purge 20mm of filament to prime nozzle. \nG92 E0 ; reset extrusion distance \nG4 S5 ; Pause for 5 seconds to allow time for removing extruded filament \nG28 ; start from home position \nG1 E-6 F900 ; retract 6mm of filament before starting the bed leveling process \nG92 E0 ; reset extrusion distance \nG4 S5 ; pause for 5 seconds to allow time for removing extruded filament \nG29 P2 Z0.28 ; Auto-level ; ADJUST Z higher or lower to set first layer height. Start with 0.02 adjustments. \nG1 Z30 ; raise Z 30mm to prepare for priming the nozzle \nG1 E5 F200 ; extrude 5mm of filament to help prime the nozzle just prior to the start of the print \nG92 E0 ; reset extrusion distance \nG4 S5 ; pause for 5 seconds to allow time for cleaning the nozzle and build plate if needed "
+            "default_value": ";MPMD V1 Basic Calibration Tutorial: \n; https://www.thingiverse.com/thing:3892011 \n; \n; If you want to put calibration values in your \n; Start Gcode, put them here. \n; \n;If on stock firmware, at minimum, consider adding \n;M665 R here since there is a firmware bug.  \n; \n; Calibration part ends here \n; \nG90 ; switch to absolute positioning \nG92 E0 ; reset extrusion distance \nG1 E20 F200 ; purge 20mm of filament to prime nozzle. \nG92 E0 ; reset extrusion distance \nG4 S5 ; Pause for 5 seconds to allow time for removing extruded filament \nG28 ; start from home position \nG1 E-6 F900 ; retract 6mm of filament before starting the bed leveling process \nG92 E0 ; reset extrusion distance \nG4 S5 ; pause for 5 seconds to allow time for removing extruded filament \nG29 P2 Z0.28 ; Auto-level ; ADJUST Z higher or lower to set first layer height. Start with 0.02 adjustments. \nG1 Z30 ; raise Z 30mm to prepare for priming the nozzle \nG1 E5 F200 ; extrude 5mm of filament to help prime the nozzle just prior to the start of the print \nG92 E0 ; reset extrusion distance \nG4 S5 ; pause for 5 seconds to allow time for cleaning the nozzle and build plate if needed "
         },
         "machine_end_gcode":
         {        
@@ -47,9 +47,9 @@
             "default_value": 0.21
         },
         "material_bed_temperature": { "value": 40 },
-        "line_width": { "value": "round(machine_nozzle_size * 0.875, 2)" },
-        "material_print_temperature_layer_0": { "value": "material_print_temperature + 5" },
-        "material_bed_temperature_layer_0": { "value": "material_bed_temperature + 5" },
+        "line_width": { "value": "round(machine_nozzle_size, 2)" },
+        "material_print_temperature_layer_0": { "value": "material_print_temperature" },
+        "material_bed_temperature_layer_0": { "value": "material_bed_temperature" },
         "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
         "machine_max_feedrate_x": { "default_value": 150 },
         "machine_max_feedrate_y": { "default_value": 150 },
diff --git a/resources/definitions/mp_mini_delta_v2.def.json b/resources/definitions/mp_mini_delta_v2.def.json
new file mode 100644
index 0000000000..30c7cb2823
--- /dev/null
+++ b/resources/definitions/mp_mini_delta_v2.def.json
@@ -0,0 +1,51 @@
+{
+    "version": 2,
+    "name": "MP Mini Delta V2",
+    "inherits": "fdmprinter",
+    "metadata": {
+        "author": "mpminidelta subreddit",
+        "manufacturer": "Monoprice",
+        "file_formats": "text/x-gcode",
+        "platform": "mp_mini_delta_platform.3mf",
+        "supports_usb_connection": true,
+        "has_machine_quality": false,
+        "visible": true,
+        "platform_offset": [0, 0, 0],
+        "has_materials": true,
+        "has_variants": false,
+        "has_machine_materials": false,
+        "has_variant_materials": false,
+        "preferred_quality_type": "normal",
+        "machine_extruder_trains":
+        {
+            "0": "mp_mini_delta_v2_extruder_0"
+        }
+    },
+
+    "overrides": {
+        "machine_start_gcode":
+        {
+          "default_value": ";(**** start.gcode for MP Mini Delta V2****)\nG21\nG90\nM82\nM107\nM104 S170\nG28 X0 Y0\nG28 Z0\nG29 Z0.4\nG1 Z15 F300\nM109 S{material_print_temperature_layer_0}\nG92 E0\nG1 F200 E3\nG92 E0\nG1 F2000\n"
+        },
+        "machine_end_gcode": {
+          "default_value": ";(**** end.gcode for MP Mini Delta V2****)\nG28;(Stick out the part)\nM190 S0;(Turn off heat bed, don't wait.)\nG92 E10;(Set extruder to 10)\nG1 E7 F200;(retract 3mm)\nM104 S0;(Turn off nozzle, don't wait)\nG4 S300;(Delay 5 minutes)\nM107;(Turn off part fan)\nM84;(Turn off stepper motors.)"
+        },
+        "material_print_temp_prepend":{"default_value":false},
+        "material_bed_temperature": { "value": 40 },
+        "machine_width": { "default_value": 110 },
+        "machine_depth": { "default_value": 110 },
+        "machine_height": { "default_value": 120 },
+        "machine_heated_bed": { "default_value": true },
+        "machine_shape": { "default_value": "elliptic" },
+        "machine_center_is_zero": { "default_value": true },
+        "machine_nozzle_size": {
+            "default_value": 0.4
+        },
+        "line_width": { "value": "round(machine_nozzle_size, 2)" },
+        "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
+        "retraction_amount": { "default_value": 5 },
+        "retraction_speed": { "default_value": 28 },
+        "retraction_hop_enabled": { "default_value": false },
+        "retract_at_layer_change": { "default_value": true }
+    }
+}
diff --git a/resources/definitions/ultimaker2_plus_connect.def.json b/resources/definitions/ultimaker2_plus_connect.def.json
index c0ddcf813f..46c615a262 100644
--- a/resources/definitions/ultimaker2_plus_connect.def.json
+++ b/resources/definitions/ultimaker2_plus_connect.def.json
@@ -22,7 +22,8 @@
             "0": "ultimaker2_plus_connect_extruder_0"
         },
         "supports_usb_connection": false,
-        "supports_network_connection": true
+        "supports_network_connection": true,
+        "supports_material_export": true
     },
 
     "overrides": {
diff --git a/resources/definitions/ultimaker_s3.def.json b/resources/definitions/ultimaker_s3.def.json
index 962bff3fa0..43f32a96dc 100644
--- a/resources/definitions/ultimaker_s3.def.json
+++ b/resources/definitions/ultimaker_s3.def.json
@@ -27,6 +27,7 @@
         "first_start_actions": [ "DiscoverUM3Action" ],
         "supported_actions": [ "DiscoverUM3Action" ],
         "supports_usb_connection": false,
+        "supports_material_export": true,
         "weight": -1,
         "firmware_update_info": {
             "id": 213482,
diff --git a/resources/definitions/ultimaker_s5.def.json b/resources/definitions/ultimaker_s5.def.json
index 8a9880c31a..71de826953 100644
--- a/resources/definitions/ultimaker_s5.def.json
+++ b/resources/definitions/ultimaker_s5.def.json
@@ -28,6 +28,7 @@
         "supported_actions": [ "DiscoverUM3Action" ],
         "supports_usb_connection": false,
         "supports_network_connection": true,
+        "supports_material_export": true,
         "weight": -2,
         "firmware_update_info": {
             "id": 9051,
diff --git a/resources/extruders/atom2_extruder_0.def.json b/resources/extruders/atom2_extruder_0.def.json
new file mode 100644
index 0000000000..be9d5782ff
--- /dev/null
+++ b/resources/extruders/atom2_extruder_0.def.json
@@ -0,0 +1,15 @@
+{
+    "version": 2,
+    "name": "Extruder 1",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "atom2",
+        "position": "0"
+    },
+
+    "overrides": {
+        "extruder_nr": { "default_value": 0 },
+        "machine_nozzle_size": { "default_value": 0.4 },
+        "material_diameter": { "default_value": 1.75 }
+    }
+}
diff --git a/resources/extruders/flsun_sr_extruder_0.def.json b/resources/extruders/flsun_sr_extruder_0.def.json
new file mode 100644
index 0000000000..31880b5130
--- /dev/null
+++ b/resources/extruders/flsun_sr_extruder_0.def.json
@@ -0,0 +1,20 @@
+{
+    "version": 2,
+    "name": "Extruder 1",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "flsun_sr",
+        "position": "0"
+    },
+    "overrides": {
+        "extruder_nr": { 
+            "default_value": 0 
+        },
+        "machine_nozzle_size": {
+            "default_value": 0.4 
+        },
+        "material_diameter": { 
+            "default_value": 1.75 
+        }
+    }
+}
diff --git a/resources/extruders/mp_mini_delta_v2_extruder_0.def.json b/resources/extruders/mp_mini_delta_v2_extruder_0.def.json
new file mode 100644
index 0000000000..022ace632f
--- /dev/null
+++ b/resources/extruders/mp_mini_delta_v2_extruder_0.def.json
@@ -0,0 +1,15 @@
+{
+    "version": 2,
+    "name": "Extruder 0",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "mp_mini_delta_v2",
+        "position": "0"
+    },
+
+    "overrides": {
+        "extruder_nr": { "default_value": 0 },
+        "machine_nozzle_size": { "default_value": 0.4 },
+        "material_diameter": { "default_value": 1.75 }
+    }
+}
diff --git a/resources/i18n/de_DE/fdmprinter.def.json.po b/resources/i18n/de_DE/fdmprinter.def.json.po
index 5d7915ac0d..3eb590b680 100644
--- a/resources/i18n/de_DE/fdmprinter.def.json.po
+++ b/resources/i18n/de_DE/fdmprinter.def.json.po
@@ -1177,7 +1177,7 @@ msgstr "Hinten links"
 #: fdmprinter.def.json
 msgctxt "z_seam_position option back"
 msgid "Back"
-msgstr "Zurück"
+msgstr "Hinten"
 
 #: fdmprinter.def.json
 msgctxt "z_seam_position option backright"
diff --git a/resources/meshes/BIQU_BX_PLATE.stl b/resources/meshes/BIQU_BX_PLATE.stl
new file mode 100644
index 0000000000..9c1726f276
Binary files /dev/null and b/resources/meshes/BIQU_BX_PLATE.stl differ
diff --git a/resources/meshes/flsun_sr.3mf b/resources/meshes/flsun_sr.3mf
new file mode 100644
index 0000000000..7eba390a66
Binary files /dev/null and b/resources/meshes/flsun_sr.3mf differ
diff --git a/resources/qml/ActionButton.qml b/resources/qml/ActionButton.qml
index 31d5c35d2c..582df3d87c 100644
--- a/resources/qml/ActionButton.qml
+++ b/resources/qml/ActionButton.qml
@@ -18,6 +18,7 @@ Button
     property alias textFont: buttonText.font
     property alias cornerRadius: backgroundRect.radius
     property alias tooltip: tooltip.tooltipText
+    property alias tooltipWidth: tooltip.width
 
     property color color: UM.Theme.getColor("primary")
     property color hoverColor: UM.Theme.getColor("primary_hover")
diff --git a/resources/qml/Actions.qml b/resources/qml/Actions.qml
index 7a4a837c66..95c6778b87 100644
--- a/resources/qml/Actions.qml
+++ b/resources/qml/Actions.qml
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Ultimaker B.V.
+// Copyright (c) 2021 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
 pragma Singleton
@@ -122,7 +122,15 @@ Item
     Action
     {
         id: quitAction
-        text: catalog.i18nc("@action:inmenu menubar:file","&Quit")
+
+        //On MacOS, don't translate the "Quit" word.
+        //Qt moves the "quit" entry to a different place, and if it got renamed can't find it again when it attempts to
+        //delete the item upon closing the application, causing a crash.
+        //In the new location, these items are translated automatically according to the system's language.
+        //For more information, see:
+        //- https://doc.qt.io/qt-5/macos-issues.html#menu-bar
+        //- https://doc.qt.io/qt-5/qmenubar.html#qmenubar-as-a-global-menu-bar
+        text: (Qt.platform.os == "osx") ? "&Quit" : catalog.i18nc("@action:inmenu menubar:file", "&Quit")
         iconName: "application-exit"
         shortcut: StandardKey.Quit
     }
@@ -172,7 +180,14 @@ Item
     Action
     {
         id: preferencesAction
-        text: catalog.i18nc("@action:inmenu", "Configure Cura...")
+        //On MacOS, don't translate the "Configure" word.
+        //Qt moves the "configure" entry to a different place, and if it got renamed can't find it again when it
+        //attempts to delete the item upon closing the application, causing a crash.
+        //In the new location, these items are translated automatically according to the system's language.
+        //For more information, see:
+        //- https://doc.qt.io/qt-5/macos-issues.html#menu-bar
+        //- https://doc.qt.io/qt-5/qmenubar.html#qmenubar-as-a-global-menu-bar
+        text: (Qt.platform.os == "osx") ? "Configure Cura..." : catalog.i18nc("@action:inmenu", "Configure Cura...")
         iconName: "configure"
     }
 
@@ -263,7 +278,15 @@ Item
     Action
     {
         id: aboutAction;
-        text: catalog.i18nc("@action:inmenu menubar:help", "About...");
+
+        //On MacOS, don't translate the "About" word.
+        //Qt moves the "about" entry to a different place, and if it got renamed can't find it again when it
+        //attempts to delete the item upon closing the application, causing a crash.
+        //In the new location, these items are translated automatically according to the system's language.
+        //For more information, see:
+        //- https://doc.qt.io/qt-5/macos-issues.html#menu-bar
+        //- https://doc.qt.io/qt-5/qmenubar.html#qmenubar-as-a-global-menu-bar
+        text: (Qt.platform.os == "osx") ? "About..." : catalog.i18nc("@action:inmenu menubar:help", "About...");
         iconName: "help-about";
     }
 
diff --git a/resources/qml/Cura.qml b/resources/qml/Cura.qml
index 191ae712d4..7782ace3af 100644
--- a/resources/qml/Cura.qml
+++ b/resources/qml/Cura.qml
@@ -417,6 +417,7 @@ UM.MainWindow
                     Cura.PrimaryButton
                     {
                         text: model.name
+                        iconSource: UM.Theme.getIcon(model.icon)
                         height: UM.Theme.getSize("message_action_button").height
                     }
                 }
@@ -426,6 +427,7 @@ UM.MainWindow
                     Cura.SecondaryButton
                     {
                         text: model.name
+                        iconSource: UM.Theme.getIcon(model.icon)
                         height: UM.Theme.getSize("message_action_button").height
                     }
                 }
@@ -434,6 +436,14 @@ UM.MainWindow
                     Cura.TertiaryButton
                     {
                         text: model.name
+                        iconSource:
+                        {
+                            if (model.icon == null || model.icon == "")
+                            {
+                                return UM.Theme.getIcon("LinkExternal")
+                            }
+                            return UM.Theme.getIcon(model.icon)
+                        }
                         height: UM.Theme.getSize("message_action_button").height
                     }
                 }
diff --git a/resources/qml/ExpandableComponent.qml b/resources/qml/ExpandableComponent.qml
index bbe617e27d..18eb8c0fa6 100644
--- a/resources/qml/ExpandableComponent.qml
+++ b/resources/qml/ExpandableComponent.qml
@@ -167,7 +167,7 @@ Item
                     verticalCenter: parent.verticalCenter
                     margins: background.padding
                 }
-                source: expanded ? UM.Theme.getIcon("ChevronSingleDown") : UM.Theme.getIcon("ChevronSingleLeft")
+                source: UM.Theme.getIcon("ChevronSingleDown")
                 visible: source != ""
                 width: UM.Theme.getSize("standard_arrow").width
                 height: UM.Theme.getSize("standard_arrow").height
diff --git a/resources/qml/ExpandablePopup.qml b/resources/qml/ExpandablePopup.qml
index da56470bfb..3bcfdbb6f8 100644
--- a/resources/qml/ExpandablePopup.qml
+++ b/resources/qml/ExpandablePopup.qml
@@ -180,7 +180,7 @@ Item
                     verticalCenter: parent.verticalCenter
                     margins: background.padding
                 }
-                source: expanded ? UM.Theme.getIcon("ChevronSingleDown") : UM.Theme.getIcon("ChevronSingleLeft")
+                source: UM.Theme.getIcon("ChevronSingleDown")
                 visible: source != ""
                 width: UM.Theme.getSize("standard_arrow").width
                 height: UM.Theme.getSize("standard_arrow").height
diff --git a/resources/qml/MainWindow/ApplicationMenu.qml b/resources/qml/MainWindow/ApplicationMenu.qml
index 95cea77248..62b3a71ee8 100644
--- a/resources/qml/MainWindow/ApplicationMenu.qml
+++ b/resources/qml/MainWindow/ApplicationMenu.qml
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Ultimaker B.V.
+// Copyright (c) 2021 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.7
@@ -48,7 +48,17 @@ Item
 
         ViewMenu { title: catalog.i18nc("@title:menu menubar:toplevel", "&View") }
 
-        SettingsMenu { title: catalog.i18nc("@title:menu menubar:toplevel", "&Settings") }
+        SettingsMenu
+        {
+            //On MacOS, don't translate the "Settings" word.
+            //Qt moves the "settings" entry to a different place, and if it got renamed can't find it again when it
+            //attempts to delete the item upon closing the application, causing a crash.
+            //In the new location, these items are translated automatically according to the system's language.
+            //For more information, see:
+            //- https://doc.qt.io/qt-5/macos-issues.html#menu-bar
+            //- https://doc.qt.io/qt-5/qmenubar.html#qmenubar-as-a-global-menu-bar
+            title: (Qt.platform.os == "osx") ? "&Settings" : catalog.i18nc("@title:menu menubar:toplevel", "&Settings")
+        }
 
         Menu
         {
@@ -91,7 +101,15 @@ Item
         Menu
         {
             id: preferencesMenu
-            title: catalog.i18nc("@title:menu menubar:toplevel", "P&references")
+
+            //On MacOS, don't translate the "Preferences" word.
+            //Qt moves the "preferences" entry to a different place, and if it got renamed can't find it again when it
+            //attempts to delete the item upon closing the application, causing a crash.
+            //In the new location, these items are translated automatically according to the system's language.
+            //For more information, see:
+            //- https://doc.qt.io/qt-5/macos-issues.html#menu-bar
+            //- https://doc.qt.io/qt-5/qmenubar.html#qmenubar-as-a-global-menu-bar
+            title: (Qt.platform.os == "osx") ? "&Preferences" : catalog.i18nc("@title:menu menubar:toplevel", "P&references")
 
             MenuItem { action: Cura.Actions.preferences }
         }
diff --git a/resources/qml/Preferences/Materials/MaterialsPage.qml b/resources/qml/Preferences/Materials/MaterialsPage.qml
index 791d6685de..4de3ad918b 100644
--- a/resources/qml/Preferences/Materials/MaterialsPage.qml
+++ b/resources/qml/Preferences/Materials/MaterialsPage.qml
@@ -1,5 +1,5 @@
-// Copyright (c) 2018 Ultimaker B.V.
-// Uranium is released under the terms of the LGPLv3 or higher.
+// Copyright (c) 2021 Ultimaker B.V.
+// Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.7
 import QtQuick.Controls 1.4
@@ -191,6 +191,21 @@ Item
             }
             enabled: base.hasCurrentItem
         }
+
+        //Sync button.
+        Button
+        {
+            id: syncMaterialsButton
+            text: catalog.i18nc("@action:button Sending materials to printers", "Sync with Printers")
+            iconName: "sync-synchronizing"
+            onClicked:
+            {
+                forceActiveFocus();
+                exportAllMaterialsDialog.folder = base.materialManagementModel.getPreferredExportAllPath();
+                exportAllMaterialsDialog.open();
+            }
+            visible: Cura.MachineManager.activeMachine.supportsMaterialExport
+        }
     }
 
     Item {
@@ -368,6 +383,19 @@ Item
         }
     }
 
+    FileDialog
+    {
+        id: exportAllMaterialsDialog
+        title: catalog.i18nc("@title:window", "Export All Materials")
+        selectExisting: false
+        nameFilters: ["Material archives (*.umm)", "All files (*)"]
+        onAccepted:
+        {
+            base.materialManagementModel.exportAll(fileUrl);
+            CuraApplication.setDefaultPath("dialog_material_path", folder);
+        }
+    }
+
     MessageDialog
     {
         id: messageDialog
diff --git a/resources/qml/Preferences/SettingVisibilityPage.qml b/resources/qml/Preferences/SettingVisibilityPage.qml
index 37149c0009..d2fd5c7e94 100644
--- a/resources/qml/Preferences/SettingVisibilityPage.qml
+++ b/resources/qml/Preferences/SettingVisibilityPage.qml
@@ -95,7 +95,7 @@ UM.PreferencesPage
 
             placeholderText: catalog.i18nc("@label:textbox", "Filter...")
 
-            onTextChanged: definitionsModel.filter = {"i18n_label": "*" + text}
+            onTextChanged: definitionsModel.filter = {"i18n_label|i18n_description": "*" + text}
         }
 
         NewControls.ComboBox
diff --git a/resources/qml/WelcomePages/AddNetworkOrLocalPrinterContent.qml b/resources/qml/WelcomePages/AddNetworkOrLocalPrinterContent.qml
index 0ea20f052e..edf6fe5974 100644
--- a/resources/qml/WelcomePages/AddNetworkOrLocalPrinterContent.qml
+++ b/resources/qml/WelcomePages/AddNetworkOrLocalPrinterContent.qml
@@ -54,7 +54,7 @@ Item
             {
                 id: networkPrinterScrollView
 
-                maxItemCountAtOnce: 10  // show at max 10 items at once, otherwise you need to scroll.
+                maxItemCountAtOnce: 9  // show at max 9 items at once, otherwise you need to scroll.
 
                 onRefreshButtonClicked:
                 {
diff --git a/resources/qml/WelcomePages/AddNetworkPrinterScrollView.qml b/resources/qml/WelcomePages/AddNetworkPrinterScrollView.qml
index 5334a15974..58cadbec37 100644
--- a/resources/qml/WelcomePages/AddNetworkPrinterScrollView.qml
+++ b/resources/qml/WelcomePages/AddNetworkPrinterScrollView.qml
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 Ultimaker B.V.
+// Copyright (c) 2021 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.10
@@ -214,16 +214,16 @@ Item
             id: troubleshootingButton
 
             anchors.right: parent.right
-            anchors.rightMargin: UM.Theme.getSize("default_margin").width
+            anchors.rightMargin: UM.Theme.getSize("thin_margin").width
             anchors.verticalCenter: parent.verticalCenter
             height: troubleshootingLinkIcon.height
-            width: troubleshootingLinkIcon.width + troubleshootingLabel.width + UM.Theme.getSize("default_margin").width
+            width: troubleshootingLinkIcon.width + troubleshootingLabel.width + UM.Theme.getSize("thin_margin").width
 
             UM.RecolorImage
             {
                 id: troubleshootingLinkIcon
                 anchors.right: troubleshootingLabel.left
-                anchors.rightMargin: UM.Theme.getSize("default_margin").width
+                anchors.rightMargin: UM.Theme.getSize("thin_margin").width
                 anchors.verticalCenter: parent.verticalCenter
                 height: troubleshootingLabel.height
                 width: height
diff --git a/resources/qml/Widgets/TextField.qml b/resources/qml/Widgets/TextField.qml
index 28074d4415..c126c8a6e0 100644
--- a/resources/qml/Widgets/TextField.qml
+++ b/resources/qml/Widgets/TextField.qml
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 Ultimaker B.V.
+// Copyright (c) 2021 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.10
@@ -15,6 +15,8 @@ TextField
 {
     id: textField
 
+    property alias leftIcon: iconLeft.source
+
     UM.I18nCatalog { id: catalog; name: "cura" }
 
     hoverEnabled: true
@@ -22,6 +24,7 @@ TextField
     font: UM.Theme.getFont("default")
     color: UM.Theme.getColor("text")
     renderType: Text.NativeRendering
+    leftPadding: iconLeft.visible ? iconLeft.width + UM.Theme.getSize("default_margin").width * 2 : UM.Theme.getSize("thin_margin").width
 
     states: [
         State
@@ -52,7 +55,6 @@ TextField
 
         color: UM.Theme.getColor("main_background")
 
-        anchors.margins: Math.round(UM.Theme.getSize("default_lining").width)
         radius: UM.Theme.getSize("setting_control_radius").width
 
         border.color:
@@ -67,5 +69,23 @@ TextField
             }
             return UM.Theme.getColor("setting_control_border")
         }
+
+        //Optional icon added on the left hand side.
+        UM.RecolorImage
+        {
+            id: iconLeft
+
+            anchors
+            {
+                verticalCenter: parent.verticalCenter
+                left: parent.left
+                leftMargin: UM.Theme.getSize("default_margin").width
+            }
+
+            visible: source != ""
+            height: UM.Theme.getSize("small_button_icon").height
+            width: visible ? height : 0
+            color: textField.color
+        }
     }
 }
diff --git a/resources/themes/cura-dark/theme.json b/resources/themes/cura-dark/theme.json
index 0d6fa2f260..457d2092c1 100644
--- a/resources/themes/cura-dark/theme.json
+++ b/resources/themes/cura-dark/theme.json
@@ -16,7 +16,7 @@
         "primary_text": [255, 255, 255, 204],
         "secondary": [95, 95, 95, 255],
 
-        "secondary_button": [0, 0, 0, 0],
+        "secondary_button": [39, 44, 48, 255],
         "secondary_button_hover": [85, 85, 87, 255],
         "secondary_button_text": [255, 255, 255, 255],
 
diff --git a/resources/themes/cura-light/icons/medium/ExtruderColor.svg b/resources/themes/cura-light/icons/medium/ExtruderColor.svg
index 85360a9622..cd4452b246 100644
--- a/resources/themes/cura-light/icons/medium/ExtruderColor.svg
+++ b/resources/themes/cura-light/icons/medium/ExtruderColor.svg
@@ -6,8 +6,8 @@
 	.st0{fill:#231F20;}
 </style>
 <g id="Layer_1_1_">
-	<path class="st0" d="M15,26C8.9,26,4,21.1,4,15S8.9,4,15,4s11,4.9,11,11S21.1,26,15,26z M15,7c-4.4,0-8,3.6-8,8s3.6,8,8,8
-		s8-3.6,8-8S19.4,7,15,7z"/>
+	<path class="st0" d="M15,26C8.9,26,4,21.1,4,15S8.9,4,15,4s11,4.9,11,11S21.1,26,15,26z M15,8c-3.8,0-7,3.2-7,7s3.2,7,7,7
+		s7-3.1,7-7S18.9,8,15,8z"/>
 </g>
 <g id="Comments">
 </g>
diff --git a/resources/themes/cura-light/theme.json b/resources/themes/cura-light/theme.json
index 93a40d645d..a2727ec12b 100644
--- a/resources/themes/cura-light/theme.json
+++ b/resources/themes/cura-light/theme.json
@@ -193,7 +193,7 @@
         "primary_button_hover": [16, 70, 156, 255],
         "primary_button_text": [255, 255, 255, 255],
 
-        "secondary_button": [255, 255, 255, 0],
+        "secondary_button": [255, 255, 255, 255],
         "secondary_button_shadow": [216, 216, 216, 255],
         "secondary_button_hover": [232, 240, 253, 255],
         "secondary_button_text": [25, 110, 240, 255],
diff --git a/resources/variants/biqu_bx_abl_0.2.inst.cfg b/resources/variants/biqu_bx_abl_0.2.inst.cfg
new file mode 100755
index 0000000000..b72fdc83bb
--- /dev/null
+++ b/resources/variants/biqu_bx_abl_0.2.inst.cfg
@@ -0,0 +1,12 @@
+[general]
+name = 0.2mm Nozzle
+version = 4
+definition = biqu_bx_abl
+
+[metadata]
+setting_version = 17
+type = variant
+hardware_type = nozzle
+
+[values]
+machine_nozzle_size = 0.2
diff --git a/resources/variants/biqu_bx_abl_0.3.inst.cfg b/resources/variants/biqu_bx_abl_0.3.inst.cfg
new file mode 100755
index 0000000000..7b195c0013
--- /dev/null
+++ b/resources/variants/biqu_bx_abl_0.3.inst.cfg
@@ -0,0 +1,12 @@
+[general]
+name = 0.3mm Nozzle
+version = 4
+definition = biqu_bx_abl
+
+[metadata]
+setting_version = 17
+type = variant
+hardware_type = nozzle
+
+[values]
+machine_nozzle_size = 0.3
diff --git a/resources/variants/biqu_bx_abl_0.4.inst.cfg b/resources/variants/biqu_bx_abl_0.4.inst.cfg
new file mode 100755
index 0000000000..106c5ea5d7
--- /dev/null
+++ b/resources/variants/biqu_bx_abl_0.4.inst.cfg
@@ -0,0 +1,12 @@
+[general]
+name = 0.4mm Nozzle
+version = 4
+definition = biqu_bx_abl
+
+[metadata]
+setting_version = 17
+type = variant
+hardware_type = nozzle
+
+[values]
+machine_nozzle_size = 0.4
diff --git a/resources/variants/biqu_bx_abl_0.5.inst.cfg b/resources/variants/biqu_bx_abl_0.5.inst.cfg
new file mode 100755
index 0000000000..c95388e23f
--- /dev/null
+++ b/resources/variants/biqu_bx_abl_0.5.inst.cfg
@@ -0,0 +1,12 @@
+[general]
+name = 0.5mm Nozzle
+version = 4
+definition = biqu_bx_abl
+
+[metadata]
+setting_version = 17
+type = variant
+hardware_type = nozzle
+
+[values]
+machine_nozzle_size = 0.5
diff --git a/resources/variants/biqu_bx_abl_0.6.inst.cfg b/resources/variants/biqu_bx_abl_0.6.inst.cfg
new file mode 100755
index 0000000000..0116e7478f
--- /dev/null
+++ b/resources/variants/biqu_bx_abl_0.6.inst.cfg
@@ -0,0 +1,12 @@
+[general]
+name = 0.6mm Nozzle
+version = 4
+definition = biqu_bx_abl
+
+[metadata]
+setting_version = 17
+type = variant
+hardware_type = nozzle
+
+[values]
+machine_nozzle_size = 0.6
diff --git a/resources/variants/biqu_bx_abl_0.8.inst.cfg b/resources/variants/biqu_bx_abl_0.8.inst.cfg
new file mode 100755
index 0000000000..8a5747a9f7
--- /dev/null
+++ b/resources/variants/biqu_bx_abl_0.8.inst.cfg
@@ -0,0 +1,12 @@
+[general]
+name = 0.8mm Nozzle
+version = 4
+definition = biqu_bx_abl
+
+[metadata]
+setting_version = 17
+type = variant
+hardware_type = nozzle
+
+[values]
+machine_nozzle_size = 0.8