LockChat

command /clearchat:
    aliases: /cc, /clearc, /chatc
    permission: creation.clearchat
    trigger:
        message "%nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% %nl% &7Chat Cleared By &8%player%"

command /lockchat:
    aliases: /lc, /lockc, /chatl
    permission: creation.lockchat
    trigger:
        set {locker} to "%player%"
        set {locked} to 1

        broadcast "<gray>Chat has been locked by <aqua>%player%"
command /unlockchat:
    aliases: /ulc, /ulockc, /chatul
    permission: creation.lockchat
    trigger:
        set {locked} to 0

        broadcast "<gray>Chat has been unlocked by <aqua>%player%"

on chat:

    if player has permission "creation.chatbypass":
        stop
    if {locked} is 1:
        cancel event
        message "<gray>Chat is currently locked by <aqua>%{locker}%"