Well this works on all of mine:
/bind ENTER "show chat$$startchat$$afk Writing prescriptions..."
so if you're doing it in game then press / and then when the cursor moves to the chat line type in:
bind ENTER "show chat$$startchat$$afk Writing prescriptions..."
and press <ENTER>. That should work without problems and post that chat balloon everytime you press ENTER to send a message.
It should be noted that i7 will cause an annoyance regarding this afk typing message.
If someone sends you a /tell while you're typing, the person sending the /tell will get an auto /tell back stating that you're afk.
Whether you use it from now on, your choice.
As much as I enjoyed having "Blah blah blah.." above my head, I will no longer be using it.
There is a keybind that I have been trying to figure out forever. The one that when you're typing, it pops up an afk-style message above your toon and when you're done typing, it goes away.
I've tried many different ways and everyone is telling me /bind enter "afk message$$startchat" I enter that exactly and replace "message" with my own message. I've gotten other keybinds to work but this one just won't go. Any suggestions?