Hey, I’m sorry for lack of details in OP 
I can access only Draw Size property. Can’t directly access anything else in User Interface and Interaction categories.
The reason I need this, I’m building kind of wrapper for Widget Component to speed up work. My entire plugin is all about decrease time needed to implement UIs.
So it’s sometimes useful to native property and call next actions based on additional params. Currently I can’t even Widget Class for this component from Widget Component properties - needed to duplicate this param in my “wrapper” and then I can default values of widget class, etc.