That's a simple on TEXT event. /help on text
on *:text:!commands:#yourchannel: {
.notice $nick Commands line 1...
.notice $nick Commands line 2...
}
Here's a little more complicated one that helps prevent floods:
on *:text:!commands:#yourchannel: {
if (%command.flud) { return }
set -u5 %command.flud On
.notice $nick Commands line 1...
.notice $nick Commands line 2...
}
For either of those, just repeat the notice line as many times as you need. Just be aware that too many lines can get you kicked for excess flood. If you have many lines, you may want to consider using /play instead. /help /play
