Modifying zone stamp frame size

[ind]

Hello!

I'm trying to find a way to have the frame width (maybe height, too) depend on a single parameter, it not being the main room (zone) name, which is by default. Preferably I'd use as a width-defining the room number. Unless, I'm missing something very clear (if that's the case, sincere apologies), the only issue raised & solution found is very old: Modifying the Zone Stamp 
Is there any way nowadays to make these changes without entering the script world? If not, any help for the script thing would be appreciated.

Thank you.