No, child support is not reported. 

I have another question they recommend I file the Ny residence  so I changed it up NY residency  which I am not sure if that was what I was suppose to do cause I don’t live in the actual city I live in Long Island. do I have to add any forms other then my tax 1040 and  my IT -201 ? If so what forms do I have to submit ? I wanted to e-file but it says I can’t file my federal taxes by e-file cause I have to submit other forms what forms are they referring to? 

Long Island does not pay taxes to NYC. You do not want to mark that you are a resident of NYC, only the state.

The forms may be referring to NYC information.You may have a state form not yet available. Please see below to see if you are being affected by other forms.

The state and federal governments approve the most common forms first and work their way down the list. Please see the links for form availability. Once a date shows up, the reality should be close. Once released, Turbo Tax will work quickly to get it working in the program.

Federal form availability

State form availability