Flint City taxes worksheet questions

Question1: How do I get back to the City data entry in TurboTax EasyStep after I completed the State return ?  I still have some entries to put in (e.g days worked in the city of Flint and days works outside of it).

I can  find the Flint W2 Worksheet in forms but I'd prefer to use Easystep.

 

Question2: In the Flint W2 worksheet that I  can find using the Forms search, (picture attached) in the Allocation Test Worksheet section, boxes 1 to 4 about working remotely are all marked YES, but for the Box 5  response for allowance of wage allocation "did you answer YES to question 4",  it's not allowing me to select either  the YES or the NO box.  What should I do? 

 

Question3: What is the CF-COV form for? it asked me if I need to complete one.

Screen Shot 2021-03-02.jpg

 

Any ideas?