I currently have 6 Bambu Studios open at the same time.
I have 5 printers.
I have 4 P1S printers, one A1 mini.
Only one of my P1S printers currently has the hardened gears and nozzles installed (I still have to find time to do the others).
There is absolutely no problem having multiple instances running or any of them targeting different printers or different nozzle sizes.
Just enjoy it, you are good to go.
On the Mac, the option is “New Window”.

I forgot to mention, setup the multi-device mode when you have both printers.
