Morty's Attaccks

Hello everyone, i've checked all thread and FAQ before opening this one and didn't find nothing so, here's my question:

If one of my Mortys have 4 attacks, when he level up he could learn another attack and, by learning this one, i can make him forget one of his attacks or, in order to learn a new one, he must have an empty attack space and, so, i'll have to spend tickets in this operation? Thanks for your attention!

If you don't have an empty attack space, you can choose to forget an existing attack. You can also go back and re-learn attacks you've forgotten at the Morty Labs for coupons.

Perfect, thank you very much.