State tax filing

KrisD15 says:  YOU can allocate your income to each state, regardless of how payroll did. 

In other words, for example, if the # in 1 is 120K and the #'s in 15 are 80K in one state and 50K for the other state, and the employee moved at the beginning of Sept to the second state,  can I allocate 80K for the first state and 40K for the other state and enter those as state wages??  Sept 1~Dec 31 isn't necessarily 4/12 of the full year, but you get my point.