There are a lot of events, commands and identifiers that are not in the current help file, for various reasons.
I have (or had before my system crashed) a help file that contained a lot of the items that are missing from the official help file, but even it is out of date, as, if I recall correctly, it was done up for mIRC 6, and the person that made it didn't update for later versions.
I will see if I can find the file that I am talking about, either on one of my systems, or the original online, and subject to which (if either) I can find, post a link for others to be able to obtain it.
