Is there a safe way to make your PC and Healer usable by everyone? I would not mind other players use the healer and PC but I still want to protect it from being destroyed. and keep chest contents safe.
That should be possible. See the flags part: GriefPrevention Official Thread [1.8.9/1.10.2] - Plugin Releases - Sponge Forums @LucidTheStick is the flag permission set for players?
