Hello! I worked in Gap inc in two different states. How would i go about filling out the w2? Would I use each states reference copy and put it in as two seperate W2s?

If the Employer ID number is the same for both states W-2's, you will want to just enter one W-2 form.  If the amounts in boxes 1 - 14 are different on each state copy, then you would want to combine them.  But if the amounts in boxes 1 - 14 are the same, simply enter the amounts from one of the forms.

Then, for boxes 15 and higher, enter the amounts for each state on the W-2.  Enter the first state information and then select to Add Another Row.  See the sample screenshot attached.