Attach Form 7203 automatically. Doesn't make sense to have to download it from the return just to attach it again.
Ability to prepare a two year comparison for Schedule C and Schedule E. Similar to Tax Summary two year comparison but specifically detailed for Schedule C and Schedule E.
Please, generate bookmarks for each page in the printed pdf file from ProConnect Tax Online, similar to Turbo Tax, CCH Profx and most other tax softwares.
Ability to easily split a married filing jointly return to married filing separately (Like Lacerte can do in one click)