The number of emaisl you'll see on the Messenger window is the combined total of your POP accounts.
For (!N) and (!M), you'ree free to give me some suggestions of what else you'd like to see. One good news for you is that everything can be combined, for example, (!T) can be used in some commands to specify a parameter. Let's say that you associated an alias with your quick text, like that:
QuickText: Hello (!T)
Alias: hello
Then during a chat you can enter
/hello Patchou
and you'll see
Hello Patchou
...if you wanted you could enter
/hello (!N)
and you would see "Hello <nicknames of the contact you're chatting with>".
Anyway, if you don't understand (I can have some problems to explain things in english), you'll see it soon enough in Messenger Plus!. And, last thing, everything I just talked about is already coded and working
I go back to my code!
Patchou.