multi gym building

I am trying to implement a single building for all of the gyms that changes the landscape as well as trainers based on event switches. So once you beat the first gym leader. The entire building including trainers changes to the next gym. In my head, the theory sounds fine but I have found some problems.

Is it possible for me to have a single event change from one type of trainer to another for each gym? The landscape is changing just fine, but there seems to be some interference in the trainer battle code that keeps it from changing smoothly.

I included pictures of one of the trainer events to try to make it clearer what I am doing

Have you tryed to turn self Switch A on for page 3?