With this plugin you could toggle people's abilities to build with a few simple commands. This is the first plugin I have ever made.
Commands w/ Nodes
/cb <player> - Check if a player can build. canbuild.check
/cb add/give <player> - Adds the player to the build list, giving them the power to build. canbuild.toggle.add
/cb del/remove <player> - Removes the player from the build list, revoking their build power. canbuild.toggle.del
/cb help - Brings up the help menu. canbuild.help
canbuild.build.allow - Will allow the player/group with this node to build no matter how they are toggled. It will always show "Player can build"
canbuild.build.deny - Will not allow the player/group with this node to build no matter how they are toggled. It will always show "Player can not build"
canbuild.build.allow will override canbuild.build.deny if for some reason a player has both nodes.
Operators have all the commands, this plugin does not require any permissions in order to work.