diff --git a/plugins/VersionUpgrade/VersionUpgrade25to26/__init__.py b/plugins/VersionUpgrade/VersionUpgrade25to26/__init__.py
index 3014eca4a2..1419325cc1 100644
--- a/plugins/VersionUpgrade/VersionUpgrade25to26/__init__.py
+++ b/plugins/VersionUpgrade/VersionUpgrade25to26/__init__.py
@@ -17,7 +17,6 @@ def getMetaData():
             #       if any is updated.
             ("quality_changes", 2000000):       ("quality_changes", 2000001,    upgrade.upgradeInstanceContainer),
             ("user", 2000000):                  ("user", 2000001,               upgrade.upgradeInstanceContainer),
-            ("quality", 2000000):               ("quality", 2000001,            upgrade.upgradeInstanceContainer),
             ("definition_changes", 2000000):    ("definition_changes", 2000001, upgrade.upgradeInstanceContainer),
             ("machine_stack", 3000000):         ("machine_stack", 3000001,      upgrade.upgradeMachineStack),
         },
diff --git a/plugins/VersionUpgrade/VersionUpgrade26to27/__init__.py b/plugins/VersionUpgrade/VersionUpgrade26to27/__init__.py
index 699faacab6..79ed5e8b68 100644
--- a/plugins/VersionUpgrade/VersionUpgrade26to27/__init__.py
+++ b/plugins/VersionUpgrade/VersionUpgrade26to27/__init__.py
@@ -27,7 +27,6 @@ def getMetaData():
             #       if any is updated.
             ("quality_changes", 2000001):       ("quality_changes", 2000002,    upgrade.upgradeOtherContainer),
             ("user", 2000001):                  ("user", 2000002,               upgrade.upgradeOtherContainer),
-            ("quality", 2000001):               ("quality", 2000002,            upgrade.upgradeOtherContainer),
             ("definition_changes", 2000001):    ("definition_changes", 2000002, upgrade.upgradeOtherContainer),
             ("variant", 2000000):               ("variant", 2000002,            upgrade.upgradeOtherContainer)
         },
diff --git a/plugins/VersionUpgrade/VersionUpgrade27to30/__init__.py b/plugins/VersionUpgrade/VersionUpgrade27to30/__init__.py
index 396ce4abe0..4da7257b1c 100644
--- a/plugins/VersionUpgrade/VersionUpgrade27to30/__init__.py
+++ b/plugins/VersionUpgrade/VersionUpgrade27to30/__init__.py
@@ -16,7 +16,6 @@ def getMetaData():
 
             ("quality_changes", 2000002):    ("quality_changes", 2000003,    upgrade.upgradeQualityChangesContainer),
             ("user", 2000002):               ("user", 2000003,               upgrade.upgradeOtherContainer),
-            ("quality", 2000002):            ("quality", 2000003,            upgrade.upgradeOtherContainer),
             ("definition_changes", 2000002): ("definition_changes", 2000003, upgrade.upgradeOtherContainer),
             ("variant", 2000002):            ("variant", 2000003,            upgrade.upgradeOtherContainer)
         },
diff --git a/plugins/VersionUpgrade/VersionUpgrade30to31/__init__.py b/plugins/VersionUpgrade/VersionUpgrade30to31/__init__.py
index c853e2b93b..23c972df8b 100644
--- a/plugins/VersionUpgrade/VersionUpgrade30to31/__init__.py
+++ b/plugins/VersionUpgrade/VersionUpgrade30to31/__init__.py
@@ -16,7 +16,6 @@ def getMetaData():
 
             ("quality_changes", 2000003):    ("quality_changes", 2000004,    upgrade.upgradeInstanceContainer),
             ("user", 2000003):               ("user", 2000004,               upgrade.upgradeInstanceContainer),
-            ("quality", 2000003):            ("quality", 2000004,            upgrade.upgradeInstanceContainer),
             ("definition_changes", 2000003): ("definition_changes", 2000004, upgrade.upgradeInstanceContainer),
             ("variant", 2000003):            ("variant", 2000004,            upgrade.upgradeInstanceContainer)
         },
@@ -33,10 +32,6 @@ def getMetaData():
                 "get_version": upgrade.getCfgVersion,
                 "location": {"./extruders"}
             },
-            "quality": {
-                "get_version": upgrade.getCfgVersion,
-                "location": {"./quality"}
-            },
             "quality_changes": {
                 "get_version": upgrade.getCfgVersion,
                 "location": {"./quality"}
diff --git a/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py b/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py
index 36e0036bec..ae4bf7b2f9 100644
--- a/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py
+++ b/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py
@@ -13,7 +13,6 @@ def getMetaData():
             ("extruder_train", 3000004):     ("extruder_train", 4000004,     upgrade.upgradeStack),
 
             ("definition_changes", 2000004): ("definition_changes", 3000004, upgrade.upgradeInstanceContainer),
-            ("quality", 2000004):            ("quality", 3000004,            upgrade.upgradeInstanceContainer),
             ("quality_changes", 2000004):    ("quality_changes", 3000004,    upgrade.upgradeQualityChanges),
             ("user", 2000004):               ("user", 3000004,               upgrade.upgradeInstanceContainer),
             ("variant", 2000004):            ("variant", 3000004,            upgrade.upgradeVariants)
@@ -31,10 +30,6 @@ def getMetaData():
                 "get_version": upgrade.getCfgVersion,
                 "location": {"./definition_changes"}
             },
-            "quality": {
-                "get_version": upgrade.getCfgVersion,
-                "location": {"./quality"}
-            },
             "quality_changes": {
                 "get_version": upgrade.getCfgVersion,
                 "location": {"./quality"}
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index d7d9698439..43402dea77 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -6585,6 +6585,14 @@
                     "type": "float",
                     "enabled": "bridge_settings_enabled and bridge_enable_more_layers",
                     "settable_per_mesh": true
+                },
+                "wall_try_line_thickness":
+                {
+                    "label": "Try Multiple Line Thicknesses",
+                    "description": "When creating inner walls, try various line thicknesses to fit the wall lines better in narrow spaces. This reduces or increases the inner wall line width by up to 0.01mm.",
+                    "default_value": false,
+                    "type": "bool",
+                    "settable_per_mesh": true
                 }
             }
         },