The StartEditing method is a virtual method of the Editor.ControlWidget class. It is used to select the widget and initiate the editing process. This method is typically called when a user interacts with the widget in a way that requires editing, such as clicking on it or focusing on it in the editor interface.

To use the StartEditing method, you need to have an instance of a class that derives from Editor.ControlWidget. Once you have this instance, you can call the method to begin editing the associated widget.