Question to set up multiple bezel overlays for same game?

I was wondering if there is a way to add a line in the overlay config file to ref a different rom config? Let me explain: You have two (or more) overlays but the screen position and scale is different. So how can I switch overlay and have the screen change too.

Game overrides get saved to the ROM name( which hold the screen coordinates. But can you have an alternative Rom_2 that has different coordinates.

Hope someone has an idea. Or where to ask this question if here is not the best place.