Graduate school stipend

My son is in graduate school and is filing single non dependent. He received the 1098-T showing the 

scholarships and grants he received (box 1 and 5 match) that is used for tuition, etc. He also receives a stipend to cover room/board (living expenses) which is not reported on any form (not on w2, etc). We use the last deposit statement to gather the end of year amount provided for the stipend. Trying to find the correct way to enter this in TurboTax Deluxe but keep striking out. I can enter the 1098-T on "Deductiona and Credits" but cannot successfully add the stipend as income, have tried via "Less Common Income" but to no avail, Turbotax keeps wiping it out. I do not see a place to explicitly enter a payment that was not used for tuition. 

What is the correct procedure to follow to enter the 1098-T and a non w2 stipend from the university in TurboTax deluxe?.

Thank you