Forums Scripts & Popups make this work for specific nicks

alias mm {
  var %a = $nvnick($chan,0)
  while (%a) {
    if (($fulladdress !isignore) && ($fulladdress !isprotect)) {
      .timer 1 $calc(%a * 9) .msg $nvnick($chan,%a) $1-
    }
    dec %a
  }
}