I've got question about characters

First, sorry for my english.
I'm making a game and I want player can be able to change their actor+class in game. Lets say player is pokemon like caterpie. I want him to click some button in game and change him into metapod. I just need to change actor+class but dont know how any tips?

You can change class on page 1 of the event commands, under "Actor". You can change the image of the actor on page 3 of the event commands, under "System Settings".

I feel like you didnt understand me or I didnt explain it well.

Check the 2.45 I want something like this

I understood. You want to evolve the character by changing the actor and it's class. By "actor" I assumed you meant what it looks like. That would be done by changing the actor's image, in page 1 of the event commands. You also said you wanted to evolve it by changing it's class, which can be changed on page 3 of the event commands. What part of that do you feel doesn't work?

Additionally, you can just create a new actor for the evolution and remove the first form actor and add the evolved form actor.

If none of this works, you need to help us understand why it doesn't work for you.

Okay got it now I'll give it a try thank you.