The NYC Resident Portion of Wages and Tips is grayed out with an incorrect amount. How can I edit it? NY State income can be allocated correctly, but not NYC income.

I'm a part-year resident of NY State and NY City.  The NY State income can be allocated correctly by clicking on "Part-year resident other allocations" under "New York Income Allocation."  But with NY City, when I click on "Part-year city additional allocations and info" under "New York City and Yonkers Information", the number I need to edit, the "New York City Resident Portion" of "Wages and Tips" can't be edited.  Thank you for any help!