The safezone command is, by default, available for all the operators. It's the command to sets a safe zone on a chunk, players won't be able to build anymore, and won't take damages, enchanting tables will provide level 30 enchantments without any library.

Arguments between [] are optionnal, example, in the syntax /safezone [param2], the argument param2 is optionnal.

/safezone [remove] : Sets the chunk where you're standing to a safzone if no arguments are specified. If remove is specified, and that the chunk you're standing on is a safzone, it removes this zone.