I don't know what exactly you mean, but i think WALLOPS msgs.
( in mIRC: /help on wallops )
You can try:
on *:WALLOPS:*: {
if !$window(@Events) { window -a @Events }
aline @Events $nick at $time >> $1-
}
menu @Event {
$style(2) Events { }
-
cmdshere
}
This isn't very complete, but should/could give you an first idea of how to do so.