Besides the e-file vs mail issue...there is a second one too.
TTX 2016 was not updated to work with OS X 10.13. TTX has said they have no plans to do so.
Other, MAC users with the exact problem you report...they have found that they can open their file in Forms Mode....make the changes they need about the Refund and Bank..or mail, in the Federal Information Worksheet (Part V). then print the forms needed from Forms Mode.
Not sure if they can switch back to the interview to print from the file menu or not
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
