So the idea is simple, add wooden scaffolding we can construct, deploy, take and redeploy to terraform high cave ceilings. Since adding building possibilites in mines, high ceilings are necessary for building multi story buildings and we can only flatten and mine so high. Can't reach the ceiling. So this is where scaffolding comes in, make it maybe a fine carpentry item that can be taken, moved, pushed and re-deployed around the mine so you can climb up and level the ceilings.
For the sake of non exploits, should be a mine only option so people wouldn't use it for some unsavory pvp tactics.
What say you?