on *:text:+m*:#: { if ($nick isop $chan) mode $chan +m 
  else if ($nick ishop $chan) mode $chan +m
  else .msg $nick You are not an op/hop in $chan . So you are not allowed to change modes.
}
on *:text:-m*:#: { if ($nick isop $chan) mode $chan -m 
  else if ($nick ishop $chan) mode $chan -m
  else .msg $nick You are not an op/hop in $chan . So you are not allowed to change modes.
}