/undo簡略化 必要なPL:CreatMenu的な奴

command /eazyundo <text>:
    permission: sk.admin
    aliases: eu
    trigger:
        if arg-1 is "on":
            set {ezundo.%player%} to "true"
            send "&a簡略化ON"
        if arg-1 is "off":
            set {ezundo.%player} to "false"
            send "&c簡略化OFF"
on right click holding a flint:
    if {ezundo.%player%} is "true":
        command "sudo %player% undo"