Well, I think I found a solution.  Going back to the source for the Excess SS on Schedule 3 I found a Smart Worksheet (Part II, Line 10).  ProSeries populates the calculated excess in a field that can be overwritten.  I just amended the return to claim the excess SS and it passed Intuit edits.  Just to be sure I attached a pdf of the W-2.  Hopefully this will work.

Bob