Making Objects in the Display Area Invisible 
Use
You can make all objects in the Role Editor (roles, worksets, pages, external services, and master iViews) invisible in the display area of the Role Editor.
This can be used to:
Activities
If you add the suffix __invisible (double underscore followed by 'invisible') to the technical name of a PCD object that you are creating or changing, these objects are now invisible in the display area.
Chaning the Default Setting
You can use the Role Editor's personalization functions to determine that invisible objects should now become visible in the display area. Proceed as follows: