Create Settings.md

Author: rdeioris

docs/Settings.md

@@ -0,0 +1,23 @@
+Managing Settings
+=
+
+Settings (both Editor and User-defined) are stored in standard UObject classes. The "mutable default object" if those classes is what stores the specific settings.
+
+To access the "mutable default object" of a class you can use the ```unreal_engine.get_mutable_default(class)``` function.
+
+The following example code shows how to change the Editor/Appearance settings:
+
+```python
+import unreal_engine as ue
+from unreal_engine.classes import EditorProjectAppearanceSettings
+from unreal_engine.enums import EUnit
+
+# access the editor appearance settings
+
+appearance_settings = ue.get_mutable_default(EditorProjectAppearanceSettings)
+# print properties
+ue.log(appearance_settings.properties())
+
+# assign meters as the default distance/length unit (as list of values)
+appearance_settings.DistanceUnits = [EUnit.Meters]
+```