send private message to offline users

[Sopor]

When talking to users that have sent you a private message it could be very useful to have some kind of offline PM. I don't mean i can send PM to a user that you not already have in an open PM window (you can't open a PM window on a user if they are offline except fav users i believe). You must have talked to the user and suddenly the user goes offline before you could reply. In this case the message could wait until the user gets back, i close the PM window or quit AirDC.