Build disallow block

Build disallow block is a block used to set up areas where students cannot build even if student building is enabled in the world.

Build disallow blocks can be found in creative inventory. Only teachers can see this block in their inventory. It can also be given in Teacher menu "give" section. It can be also distributed by console command or with a command block.

Build disallow block prohibits student creation or destruction of blocks above the block, even if student building in general is enabled. This does not affect creation or destruction below the block. It cannot be broken by students (not even when student building is enabled). Teachers can bypass these at anytime.