So I may have lied by calling it the "unphysical" material. What it is is a small box I made in magicavoxel using the red color in the "reserved" row of the teardown palette in magica.
Then I just make a voxbox out of that box of "reserved" material in the map editor, and make it whatever size I need the cutout to be.
It's important that this voxbox goes "inside" whatever it is you want to put a hole through, in the scene tree. Just right click an object in the scene tree and do "new" and choose "voxbox". That'll put it "inside".
And then if you want something insi
I added a version that does not require local admin or elevated privileges. But if you change to a non-default mods folder that is outside of your local user profile or somewhere that requires elevated privileges, updating and removing mods in that folder won't work.