Retirement tax questions

I see that screen.  What I don't know is the amount to enter j"... the portion that qualifies for the Colorado pension and annuity exclusion."  I know part of my military pension qualifies.  I tried to enter 1099-R as it says to do in the search field at the top right and in the block under Roger next to Qualitying Pension and Annuity Income field, and I can't get back to whatever was there before.  I can't tell from this if I've got the right number in that box.  Maybe I'll just delete the state return and do it on the State of Colorado web site.  I need to know it's right.  How would I delete the state return without affecting my federal return?  Thanks