I just modded my save file to give myself more cards to unlock the floor doors, I just used https://www.saveeditonline.com/ for it
you're talking about the doors with the teleporters nearby though right?
C:\Users\(your username)\AppData\LocalLow\fusobit\Zetria\
just a warning, there aren't any scenes for the ones that aren't already unlocked so there's really no point in unlocking them
edit: I used https://www.saveeditonline.com/ for it, btw the file is called sys.fbf