The RAD-PAD mock up filter or command handler creates a tab sheet where you can simply type in a description and add pictures.The mock up tab sheet contains no code and has no functionality.
A real filter limits the items shown in the instance list. A real command handler controls what is displayed and what happens when the user selects a command.
When you are finished with prototyping your application, specify the name of a real command handler or filter to replace the mock up tab sheets.
This property is in the Commands Allowed tab and the Filter Snap-in Settings tab.