I've always wished the mIRC favorites dialog had a treeview like the option dialog's server list to distinguish channels and sort them by network. I think it'd be a nice feature, what do you think?
I agree, it would be a nice way to be able to quickly see which favourites are for which networks, along with a category at either the start or the end (I think would be best) for those favourites that aren't set for a specific network.