ok look

on *:text:*:#:{
  tokenize 32 $strip($1-)
  if $istok(owner.superowner.master.operator,$ulevel,46) {
    ;here u can put all commands that all levels can do
    ...
    ...
    if $ulevel != operator {
      ;here u can put all command that all levels exclude operator can do
      ...
      ...
      if $ulevel != master {
        ;here u can put all cmds exclude operator and master
        ...
        ...
        if $ulevel != owner {
          ;and here for superowner
          ...
          ...
        }
      }
    }
  }
}

then no repetition ;)