You would first claim the amount on her tax return. Then, if she has an amount that she can transfer, you would still need to enter her as a dependant to do the transfer.

This FAQ tells you how to claim tuition fees in TurboTax: https://turbotax.community.intuit.ca/community/family-education/help/how-do-i-claim-my-tuition-fees/...

This FAQ tells you how to transfer unused tuition credits: https://turbotax.community.intuit.ca/community/family-education/help/how-do-i-transfer-my-unused-tui...

This FAQ tells you how to enter tuition transferred from a spouse/partner or a child: https://turbotax.community.intuit.ca/community/family-education/help/how-do-i-enter-tuition-transfer...