How do I change set/location measurements?

[Raspberry]

Hello, I am new to FF. I created a set and did a few scenes in there. Now I have to change a few of the measurements. Mainly the position of one room and one entrance. The problem ist, if I change it in room builder and open the shot manager, it goes back to its old state. My plan was to go through the shots and capture them again. How it is now, I would have to either create the scene new, or create the room for each shot newly. Is there a more simple way? Thanks for your help!