on *:TEXT:!lock:#: { if ($nick isop $chan) { //mode $chan +iKm }
  ELSE { //notice $nick 4,1Sorry you are not an operator in this channel }
}

on *:TEXT:!unlock:#: { if ($nick isop $chan) { //mode $chan -iKm }
  ELSE { //notice $nick Sorry you are not an op in this channel }
}