I believe you can set up keys to send messages by just pressing 1 button during gameplay. How do I do this? The wiki link don't seem to be working.
You can d/l the manual from here in .pdf format. To set a hotkey message go to "Options"->"Game" and press the "F1-F8" button (it's in the middle of the option screen) or the "CTRL+" (that means CTRL+F1 to F8, in total you can set 16 quick messages) to see the list.