If --- and only if --- you used TurboTax to prepare your federal return, you can go back and use Add a State to add the non-resident software and prepare your returns. Information flows from the federal return to the state returns, so if you did not use TT to prepare your federal return, you will need to seek some other way to prepare state returns. TT cannot be used to prepare "stand alone" state returns. And...when you prepare returns for a resident state (the state you live in) and a non-resident state, you need to prepare the NON-resident state return before you prepare a resident state return.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/printers-printing/finish-prior-year-return-started-turbotax-online/L9Oe4M90A_US_en_US?uid=m68tffpe