I think it would be nice to see some sort of "Append to log" feature. Sort of like the Timestamp box. Lately, when going through logs, I find myself wishing that the date was displayed, in front of the log.
Now, I know I could probably do this manually, by using the timestamp box for the date, keeping the "timestamp logs" box checked, and then on *all* of my text/notice events, use echo # $timestamp stuff, instead of using echo -t # stuff. Just so that the timestamp box wouldn't show in the echo's, while still appending them into the logs. However, there is multiple reasons I prefer to *not* do this. I really like being able to use -t to display the timestamps.
With that said, I think it'd be nice to see a "append to log" box, that acts like the timestamp box, except it's exclusively for appending information to the beginning of each logging event. (Date, Address, etc).
ie:
Timestamp Box: [ (hh:nn.ss) ]
Append To Log Box: [ $adate ]
Message inside of mIRC: (05:18.54) (Angreal): Hey!@
Logged Message: 10/01/2005 (05:18.54) (Angreal): Hey!@
I used the search function, but didn't really see anything that matched exactly the same thing that I'm suggesting. Sorry if someone has already suggested this.