Changing Trainer Card when entering second Region?

I wanna change the trainercard with an event when entering the second region.
Cant figure it out oO

the trainer card is controlled through scripts, so first you'd have to script your second Trainer card, then you'd have to alter the code for the pause menu "\PN" option to show your new Trainer card instead of the other one when a certain switch is thrown. You can then use events to throw that switch.

Ok i finished my second trainer card. its working. but how do i change the trainer card now to the second with an event? oO

Nevermind it was actually pretty easy -.- i was just too stupid :D ty