How do i change my bank info for return on turbotax if you have not mailed out tax return yet?

I am filing by mail and I downloaded my tax return to print but I want to change my bank info for the return. I am trying to access the question turbotax asks to change bank info but I cannot find it in my account. The only option I see is preview or print return. I have not mailed out my tax return yet how do it change my bank info?