mirc really needs to track logging by network since I'm in the same chan on two networks and I can't turn off logging for one without the other stopping also.
I'm not sure if this would handle what you mean or not, but mIRC does have an Include Network option in the logging dialog. mIRC Options -> IRC -> Logging
While I log everything automatically, I use this option in order to keep logs of channels with the same name but on different networks logged properly.
