Maybe this could be a "check the box" thing?  That way, if you checked the box, ProSeries could change the due date for you on the Home Base screen.  We use that screen more as a checklist and, if the due date was updated, it would be more useful.  (But... it kinda goes against ProSeries "automatically knowing" what to do.  But if the preparer knows what to do and can check a box, ProSeries can then update the due date...)