Enter at Educational Expenses and Scholarships, under Deductions and credits (not the income section). After answering no to having a 1098-T, answer yes to qualifying for an exception (that gets you to the entry screens). You will have to go thru the whole education interview to get to the scholarship screen.
If you do nave a 1098-T, enter it. You will later be asked if you had scholarships not shown on the 1098-T.
When asked if any was used for room and board, answer yes. Then enter the amount you want to be taxable (usually all of it), in the pop up box. R&B are not "qualified educational expenses". So, this is how you tell TT that it is taxable. Note the wording at that screen “or other expenses”. You didn’t have to literally use the scholarship for R&B. This will put it on line 8r of Schedule 1 (this line was new starting in 2022).