Yes you can.  When you get to the screen that asks how do you want to pay your taxes owed, select by check, that will get you through to e-file.

You can pay by check when you are ready, a 1040-v payment voucher should print after you file your return to mail the check with.  In case it does not, the following is the Federal payment voucher, instructions, & mailing addresses.

https://www.irs.gov/pub/irs-pdf/f1040v.pdf

You can also pay on the IRS website when you are ready, by direct debit, direct pay, or by credit card.

https://www.irs.gov/payments