How could I switch between characters using blueprints when a key is pressed?

I’ve managed to create a set up to be able to possess a pawn on overlap, but I cannot figure how to reverse what I’ve done. I set the events on the pawn to be possessed and it works just fine.

However, what I want to do is leave 30 seconds (so I put in a timer) and then have the playercontroller possess the original character pawn, which I had hidden as part of the original script (I didn’t want to delete it as I didn’t know how to recreate it again).