diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index bfe342d1e4..dc3d777c2f 100644
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -193,7 +193,17 @@ class CuraApplication(QtApplication):
     ## Cura has multiple locations where instance containers need to be saved, so we need to handle this differently.
     def _onExit(self):
         for instance in ContainerRegistry.getInstance().findInstanceContainers():
-            data = instance.serialize()
+            if not instance.isDirty():
+                continue
+
+            try:
+                data = instance.serialize()
+            except NotImplementedError:
+                continue
+            except Exception:
+                Logger.logException("e", "An exception occurred when serializing container %s", instance.getId())
+                continue
+
             file_name = urllib.parse.quote_plus(instance.getId()) + ".inst.cfg"
             instance_type = instance.getMetaDataEntry("type")
             path = None
@@ -211,7 +221,17 @@ class CuraApplication(QtApplication):
                     f.write(data)
 
         for stack in ContainerRegistry.getInstance().findContainerStacks():
-            data = stack.serialize()
+            if not stack.isDirty():
+                continue
+
+            try:
+                data = stack.serialize()
+            except NotImplementedError:
+                continue
+            except Exception:
+                Logger.logException("e", "An exception occurred when serializing container %s", instance.getId())
+                continue
+
             file_name = urllib.parse.quote_plus(stack.getId()) + ".stack.cfg"
             path = Resources.getStoragePath(self.ResourceTypes.MachineStack, file_name)
             with SaveFile(path, "wt", -1, "utf-8") as f:
diff --git a/plugins/LayerView/__init__.py b/plugins/LayerView/__init__.py
index 3d43532126..67750fb562 100644
--- a/plugins/LayerView/__init__.py
+++ b/plugins/LayerView/__init__.py
@@ -14,7 +14,7 @@ def getMetaData():
             "author": "Ultimaker",
             "version": "1.0",
             "description": catalog.i18nc("@info:whatsthis", "Provides the Layer view."),
-            "api": 2
+            "api": 3
         },
         "view": {
             "name": catalog.i18nc("@item:inlistbox", "Layers"),
diff --git a/resources/qml/Cura.qml b/resources/qml/Cura.qml
index b03c5ed06a..733def1b81 100644
--- a/resources/qml/Cura.qml
+++ b/resources/qml/Cura.qml
@@ -549,9 +549,11 @@ UM.MainWindow
             //: View preferences page title
             insertPage(1, catalog.i18nc("@title:tab","View"), Qt.resolvedUrl("ViewPage.qml"));
 
-            insertPage(2, catalog.i18nc("@title:tab", "Printers"), Qt.resolvedUrl("MachinesPage.qml"));
+            insertPage(3, catalog.i18nc("@title:tab", "Printers"), Qt.resolvedUrl("MachinesPage.qml"));
 
-            insertPage(3, catalog.i18nc("@title:tab", "Materials"), Qt.resolvedUrl("Preferences/MaterialsPage.qml"))
+            insertPage(4, catalog.i18nc("@title:tab", "Materials"), Qt.resolvedUrl("Preferences/MaterialsPage.qml"));
+
+            insertPage(5, catalog.i18nc("@title:tab", "Profiles"), Qt.resolvedUrl("Preferences/ProfilesPage.qml"));
 
             //Force refresh
             setPage(0);
diff --git a/resources/qml/Preferences/ProfilesPage.qml b/resources/qml/Preferences/ProfilesPage.qml
new file mode 100644
index 0000000000..6e5d39cb49
--- /dev/null
+++ b/resources/qml/Preferences/ProfilesPage.qml
@@ -0,0 +1,222 @@
+// Copyright (c) 2015 Ultimaker B.V.
+// Uranium is released under the terms of the AGPLv3 or higher.
+
+import QtQuick 2.1
+import QtQuick.Controls 1.1
+import QtQuick.Dialogs 1.2
+
+import UM 1.2 as UM
+
+UM.ManagementPage
+{
+    id: base;
+
+    title: catalog.i18nc("@title:tab", "Profiles");
+    addText: catalog.i18nc("@label", "Duplicate")
+
+    model: UM.InstanceContainersModel { filter: { "type": "quality" } }
+
+    onAddObject: {
+        var selectedProfile;
+        if (objectList.currentIndex == 0) {
+            // Current settings
+            selectedProfile = UM.MachineManager.createProfile();
+        } else {
+            selectedProfile = UM.MachineManager.duplicateProfile(currentItem.name);
+        }
+        base.selectProfile(selectedProfile);
+
+        renameDialog.removeWhenRejected = true;
+        renameDialog.open();
+        renameDialog.selectText();
+    }
+    onRemoveObject: confirmDialog.open();
+    onRenameObject: { renameDialog.removeWhenRejected = false; renameDialog.open(); renameDialog.selectText(); }
+
+    addEnabled: currentItem != null;
+    removeEnabled: currentItem != null ? !currentItem.readOnly : false;
+    renameEnabled: currentItem != null ? !currentItem.readOnly : false;
+
+    scrollviewCaption: catalog.i18nc("@label %1 is printer name","Printer: %1").arg(UM.MachineManager.activeMachineInstance)
+
+    signal selectProfile(string name)
+    onSelectProfile: {
+        objectList.currentIndex = objectList.model.find("name", name);
+    }
+
+    Item {
+        visible: base.currentItem != null
+        anchors.fill: parent
+
+        Label {
+            id: profileName
+            text: base.currentItem ? base.currentItem.name : ""
+            font: UM.Theme.getFont("large")
+            width: parent.width
+            elide: Text.ElideRight
+        }
+
+        ScrollView {
+            anchors.left: parent.left
+            anchors.top: profileName.bottom
+            anchors.topMargin: UM.Theme.getSize("default_margin").height
+            anchors.right: parent.right
+            anchors.bottom: parent.bottom
+
+            Column
+            {
+                spacing: UM.Theme.getSize("default_margin").height
+
+                Row
+                {
+                    visible: base.currentItem.id == -1 || base.currentItem.active
+                    Button
+                    {
+                        text: {
+                            var profileName = UM.MachineManager.activeProfile;
+                            profileName = (profileName.length > 20) ? profileName.substring(0, 20) + '...' : profileName;
+                            return catalog.i18nc("@action:button", "Update \"%1\"".arg(profileName));
+                        }
+                        enabled: UM.ActiveProfile.hasCustomisedValues && !UM.ActiveProfile.readOnly
+                        onClicked: UM.ActiveProfile.updateProfile()
+                    }
+
+                    Button
+                    {
+                        text: catalog.i18nc("@action:button", "Discard changes");
+                        enabled: UM.ActiveProfile.hasCustomisedValues
+                        onClicked: UM.ActiveProfile.discardChanges()
+                    }
+                }
+
+                Grid
+                {
+                    id: containerGrid
+                    columns: 2
+                    spacing: UM.Theme.getSize("default_margin").width
+
+                    Label {
+                        text: base.currentItem == null ? "" :
+                            base.currentItem.id == -1 ? catalog.i18nc("@label", "Based on") : catalog.i18nc("@label", "Profile type")
+                    }
+                    Label {
+                        text: base.currentItem == null ? "" :
+                            base.currentItem.id == -1 ? UM.MachineManager.activeProfile :
+                            base.currentItem.readOnly ? catalog.i18nc("@label", "Protected profile") : catalog.i18nc("@label", "Custom profile")
+                    }
+
+                    Column {
+                        Repeater {
+                            model: base.currentItem ? base.currentItem.settings : null
+                            Label {
+                                text: modelData.name.toString();
+                                elide: Text.ElideMiddle;
+                            }
+                        }
+                    }
+                    Column {
+                        Repeater {
+                            model: base.currentItem ? base.currentItem.settings : null
+                            Label { text: modelData.value.toString(); }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    buttons: Row {
+
+        Button
+        {
+            text: catalog.i18nc("@action:button", "Import");
+            iconName: "document-import";
+            onClicked: importDialog.open();
+        }
+
+        Button
+        {
+            text: catalog.i18nc("@action:button", "Export");
+            iconName: "document-export";
+            onClicked: exportDialog.open();
+        }
+    }
+
+    Item
+    {
+        UM.I18nCatalog { id: catalog; name: "uranium"; }
+
+        UM.ConfirmRemoveDialog
+        {
+            id: confirmDialog;
+            object: base.currentItem != null ? base.currentItem.name : "";
+            onYes: base.model.removeProfile(base.currentItem.name);
+        }
+        UM.RenameDialog
+        {
+            id: renameDialog;
+            object: base.currentItem != null ? base.currentItem.name : "";
+            property bool removeWhenRejected: false;
+            onAccepted: base.model.renameProfile(base.currentItem.name, newName.trim());
+            onRejected: {
+                if(removeWhenRejected) {
+                    base.model.removeProfile(base.currentItem.name)
+                }
+            }
+        }
+        MessageDialog
+        {
+            id: messageDialog
+            title: catalog.i18nc("@window:title", "Import Profile");
+            standardButtons: StandardButton.Ok
+            modality: Qt.ApplicationModal
+        }
+
+        FileDialog
+        {
+            id: importDialog;
+            title: catalog.i18nc("@title:window", "Import Profile");
+            selectExisting: true;
+            nameFilters: base.model.getFileNameFiltersRead()
+            folder: base.model.getDefaultPath()
+            onAccepted:
+            {
+                var result = base.model.importProfile(fileUrl)
+                messageDialog.text = result.message
+                if(result.status == "ok")
+                {
+                    messageDialog.icon = StandardIcon.Information
+                }
+                else if(result.status == "duplicate")
+                {
+                    messageDialog.icon = StandardIcon.Warning
+                }
+                else
+                {
+                    messageDialog.icon = StandardIcon.Critical
+                }
+                messageDialog.open()
+            }
+        }
+
+        FileDialog
+        {
+            id: exportDialog;
+            title: catalog.i18nc("@title:window", "Export Profile");
+            selectExisting: false;
+            nameFilters: base.model.getFileNameFiltersWrite()
+            folder: base.model.getDefaultPath()
+            onAccepted:
+            {
+                var result =  base.model.exportProfile(base.currentItem.id, base.currentItem.name, fileUrl, selectedNameFilter)
+                if(result && result.status == "error")
+                {
+                    messageDialog.icon = StandardIcon.Critical
+                    messageDialog.text = result.message
+                    messageDialog.open()
+                }
+                // else pop-up Message thing from python code
+            }
+        }
+    }
+}
diff --git a/resources/variants/ultimaker2_extended_plus_0.25.cfg b/resources/variants/ultimaker2_extended_plus_0.25.inst.cfg
similarity index 84%
rename from resources/variants/ultimaker2_extended_plus_0.25.cfg
rename to resources/variants/ultimaker2_extended_plus_0.25.inst.cfg
index 2bc14d7588..0c0154c03b 100644
--- a/resources/variants/ultimaker2_extended_plus_0.25.cfg
+++ b/resources/variants/ultimaker2_extended_plus_0.25.inst.cfg
@@ -5,6 +5,7 @@ definition = ultimaker2_extended_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.25
@@ -13,4 +14,4 @@ coasting_volume = 0.1
 coasting_min_volume = 0.17
 speed_wall = round(speed_print / 1.2, 1)
 speed_wall_0 = 1 if speed_wall < 5 else (speed_wall - 5)
-speed_topbottom = round(speed_print / 1.5, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 1.5, 1)
diff --git a/resources/variants/ultimaker2_extended_plus_0.4.cfg b/resources/variants/ultimaker2_extended_plus_0.4.inst.cfg
similarity index 82%
rename from resources/variants/ultimaker2_extended_plus_0.4.cfg
rename to resources/variants/ultimaker2_extended_plus_0.4.inst.cfg
index a0de0ad2d7..87b74b2572 100644
--- a/resources/variants/ultimaker2_extended_plus_0.4.cfg
+++ b/resources/variants/ultimaker2_extended_plus_0.4.inst.cfg
@@ -5,10 +5,11 @@ definition = ultimaker2_extended_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.4
 machine_nozzle_tip_outer_diameter = 1.05
 speed_wall = round(speed_print / 1.25, 1)
 speed_wall_0 = 1 if speed_wall < 10 else (speed_wall - 10)
-speed_topbottom = round(speed_print / 2.25, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 2.25, 1)
diff --git a/resources/variants/ultimaker2_extended_plus_0.6.cfg b/resources/variants/ultimaker2_extended_plus_0.6.inst.cfg
similarity index 83%
rename from resources/variants/ultimaker2_extended_plus_0.6.cfg
rename to resources/variants/ultimaker2_extended_plus_0.6.inst.cfg
index 10fa9dd4de..343b2d85e5 100644
--- a/resources/variants/ultimaker2_extended_plus_0.6.cfg
+++ b/resources/variants/ultimaker2_extended_plus_0.6.inst.cfg
@@ -5,6 +5,7 @@ definition = ultimaker2_extended_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.6
@@ -12,4 +13,4 @@ machine_nozzle_tip_outer_diameter = 1.25
 coasting_volume = 1.36
 speed_wall = round(speed_print * 4 / 3, 1)
 speed_wall_0 = 1 if speed_wall < 10 else (speed_wall - 10)
-speed_topbottom = round(speed_print / 2, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 2, 1)
diff --git a/resources/variants/ultimaker2_extended_plus_0.8.cfg b/resources/variants/ultimaker2_extended_plus_0.8.inst.cfg
similarity index 83%
rename from resources/variants/ultimaker2_extended_plus_0.8.cfg
rename to resources/variants/ultimaker2_extended_plus_0.8.inst.cfg
index 2980215ebd..c1bb4555c1 100644
--- a/resources/variants/ultimaker2_extended_plus_0.8.cfg
+++ b/resources/variants/ultimaker2_extended_plus_0.8.inst.cfg
@@ -5,6 +5,7 @@ definition = ultimaker2_extended_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.8
@@ -12,4 +13,4 @@ machine_nozzle_tip_outer_diameter = 1.35
 coasting_volume = 3.22
 speed_wall = round(speed_print * 4 / 3, 1)
 speed_wall_0 = 1 if speed_wall < 10 else (speed_wall - 10)
-speed_topbottom = round(speed_print / 2, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 2, 1)
diff --git a/resources/variants/ultimaker2_plus_0.25.cfg b/resources/variants/ultimaker2_plus_0.25.inst.cfg
similarity index 84%
rename from resources/variants/ultimaker2_plus_0.25.cfg
rename to resources/variants/ultimaker2_plus_0.25.inst.cfg
index 18839a8871..51a4b44a4a 100644
--- a/resources/variants/ultimaker2_plus_0.25.cfg
+++ b/resources/variants/ultimaker2_plus_0.25.inst.cfg
@@ -5,6 +5,7 @@ definition = ultimaker2_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.25
@@ -13,4 +14,4 @@ coasting_volume = 0.1
 coasting_min_volume = 0.17
 speed_wall = round(speed_print / 1.2, 1)
 speed_wall_0 = 1 if speed_wall < 5 else (speed_wall - 5)
-speed_topbottom = round(speed_print / 1.5, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 1.5, 1)
diff --git a/resources/variants/ultimaker2_plus_0.4.cfg b/resources/variants/ultimaker2_plus_0.4.inst.cfg
similarity index 81%
rename from resources/variants/ultimaker2_plus_0.4.cfg
rename to resources/variants/ultimaker2_plus_0.4.inst.cfg
index b7dc47ea6e..aaea23a8df 100644
--- a/resources/variants/ultimaker2_plus_0.4.cfg
+++ b/resources/variants/ultimaker2_plus_0.4.inst.cfg
@@ -5,10 +5,11 @@ definition = ultimaker2_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.4
 machine_nozzle_tip_outer_diameter = 1.05
 speed_wall = round(speed_print / 1.25, 1)
 speed_wall_0 = 1 if speed_wall < 10 else (speed_wall - 10)
-speed_topbottom = round(speed_print / 2.25, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 2.25, 1)
diff --git a/resources/variants/ultimaker2_plus_0.6.cfg b/resources/variants/ultimaker2_plus_0.6.inst.cfg
similarity index 83%
rename from resources/variants/ultimaker2_plus_0.6.cfg
rename to resources/variants/ultimaker2_plus_0.6.inst.cfg
index d6a7da7437..c416b2ec3c 100644
--- a/resources/variants/ultimaker2_plus_0.6.cfg
+++ b/resources/variants/ultimaker2_plus_0.6.inst.cfg
@@ -5,6 +5,7 @@ definition = ultimaker2_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.6
@@ -12,4 +13,4 @@ machine_nozzle_tip_outer_diameter = 1.25
 coasting_volume = 1.36
 speed_wall = round(speed_print * 4 / 3, 1)
 speed_wall_0 = 1 if speed_wall < 10 else (speed_wall - 10)
-speed_topbottom = round(speed_print / 2, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 2, 1)
diff --git a/resources/variants/ultimaker2_plus_0.8.cfg b/resources/variants/ultimaker2_plus_0.8.inst.cfg
similarity index 83%
rename from resources/variants/ultimaker2_plus_0.8.cfg
rename to resources/variants/ultimaker2_plus_0.8.inst.cfg
index cb97151642..3b577384ec 100644
--- a/resources/variants/ultimaker2_plus_0.8.cfg
+++ b/resources/variants/ultimaker2_plus_0.8.inst.cfg
@@ -5,6 +5,7 @@ definition = ultimaker2_plus
 
 [metadata]
 author = Ultimaker
+type = variant
 
 [values]
 machine_nozzle_size = 0.8
@@ -12,4 +13,4 @@ machine_nozzle_tip_outer_diameter = 1.35
 coasting_volume = 3.22
 speed_wall = round(speed_print * 4 / 3, 1)
 speed_wall_0 = 1 if speed_wall < 10 else (speed_wall - 10)
-speed_topbottom = round(speed_print / 2, 1)
\ No newline at end of file
+speed_topbottom = round(speed_print / 2, 1)