I am a full time student in 2018 and my tuition was $2330 for the fall term. Turbotax is only allowing me to claim $934 and assuming that I want to carry forward the rest, which NOT what I want to do. I want to keep things in the same tax year. There doesn't appear to be an option to claim the full amount for the 2018 tax year.
TurboTax automatically claims the amount of tuition that lowers your income tax obligation to zero. If you could apply the total amount, those extra amounts would be lost as these credits are non-refundable. (you wouldn't get a larger refund)
CRA requires that you use only the amount of tuition needed to reduce your tax to zero.