How would I add it properly?
I don't know. If you're fine with it freezing the server on a large selection, just add a /setBrickgroup command to the end of scripts/server/commands.cs that does it. You can see how to iterate the selection from other commands.
If you don't want it to freeze the server, you have to create a new duplimode for it (to keep the player from doing something else while the thing runs) and properly handle transitions from and to the other modes (it's basically a stuffty state machine)
alright zeblote got it ty based zeblote
I never said I wanted to do that :v
New dup has grown so much from the original plan that it's a nightmare to add new stuff. Probably should re-write the thing again...