Integrity Modeler (v8.3) currently has Find reports for "Unused Stubs" and "All Model Stubs". The former would be much more useful as a report on all stubs that are currently used, since they are the ones that cause real problems. Then one would have separate reports on Used Stubs and on Unused Stubs, as desired.
Also, information that is returned in the Results windows (such as from the above reports) cannot be copied anywhere else, such as to Notepad, let alone to Excel. This would be very useful please.