why cannot edit form (before filing)?

[nacykin]

How do I edit 1my 1040-SR?? [Plz note I have NOT yet filed and I need to make a small correction (to check an additional checkbox).] I printed my completed return, andI find it created 1040-SR. BUT I cannot access it via the software to edit it. I have been trying everything I can think of for HOURS. PLEASE HELP. Thank you hugely ion advance!

[xmasbaby0]

Click Add a State.  You do not really have to add a state return, but that trick will let you back in to the software to make changes or add information.