--Searched, found nothing similar--
I found another disconnect macro, but it is a little different, in that when you press it, it will bring up the logout timer, (same as when you press escape>exit game), however, you can still move around. Simply press "Exit Now" to disconnect. This can be and can be used while falling/in combat. You can also cast spells while the timer is up, which you can not do regularly.
The macro is:
Edited to make it a little bit clearer.Code:/script Quit(); /run CancelLogout();