I have an interesting proposition for the mIRC development team.
If you could make the $network(n) remote return the network specified as n, where if n is 0, then it would return total networks that you are on.
And I have another proposition for the $get and $send remotes. You could make a $get(n).network and $send(n).network return the network through which you are getting or sending a file.
That's all for now!