Did you already e-file? If you did NOT e-file you can go to the FILE section and change how you want to receive your refund.
Once a return has been accepted by the IRS you cannot change how you want to receive your refund.
I efiled my 3029 taxes but federal and state rejected them. So, I want them back and send it by regular mail.
See this TurboTax support FAQ for printing a tax return for mailing - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...