If you know none of the 1099-Q is taxable, just don't enter it. As you've discovered it's complicated and messy. Avoid the hassle.
If you NEED to enter it to calculate the taxable amount, you MUST enter the 1099-Q before entering the 1098-T and other expenses.
To get the screen to enter Room & Board, answer yes when asked if you have book expenses.
You will eventually reach the screen "amount used to claim the education credit" (on the parent's return). If TT has not prepopulated that with $4000, you should enter (or change to) $4000.
