Having said all of that...

Reading your *actual* *question* a little bit more closely, something such as "create a custom feedback form for This Particular ClientX" is absolutey possible, and should be comparatively trivial to do.  (Because at any given time, you are only dealing with a single client's detail.)

Become familiar with the "Series #" information for the pages that you care about.  10/Wages is series11, 11/Interest is series12, 12/Dividends is series13, 13/Rental is series14, 16/business is series51...  but page3/Direct Deposit information is series5100, and the various 20.X (K-1 items) are each separate: 20.1 PAR is 55, 20.2 SCO is 56, 20.3 EST is 57, 20.4 REMIC is 58.

Essentially everything you will care about will use code800 for the name, so that's really easy.

Robert