on *:TEXT:!setevent *:#:{  
  if ($nick isop $chan) { 
    set %event $2- 
   notice $chan The event has been updated by $nick . Type !event to see the event. 
   set %no $nick  
} 
}
on *:TEXT:!event:#: { 
  var %event
  notice $nick 4,1 %event This event was set by o
}