After entering the 1098-T, In the education expenses section, you will get a single box to enter one number for total room and board (R&B) paid. To get the screen to enter Room & Board, answer yes when asked if you have book expenses.
Enter the 1099-Q for the 529 plan distribution before entering educational expenses, including R&B (TT will not give you the R&B entry box unless you need it for a 529 or ESA distribution).
