Yes, you can do that. But TTax makes it somewhat difficult to find.
On the screen where it asks if you want to e-file READ ALL information CAREFULLY, especially the smaller or faded print.
Also, look carefully at the selections, there should be a 'radio dial' type selection (a circle with a dot in the center). The DEFAULT option is to e-file --simply select/click on the 'other' radio dial option, to select print/mail.
NOTE: There may be a second screen where you have to make the same selections to confirm your choice.