I understand about key binding, but in this case, to what? In the one case where this bar has worked i showed a button to pick up x, a button to release x, and a button for increased speed. the button allowing me to exit the vehicle did not show up. I do see in the wow interface an option for leaving the vehicle. I have just created the binding there, but have not tested it yet.

I had thought that I might create a macro on one of the buttons to do specifically this, but I don't know if making that one button a macro will affect the rest of the buttons on that bar and more to the point I do not know what command to put into the macro to make it work. I had read that typing /exit vehicle in the command line would work, but when i tried it, I was exited from the game completely.

Is there a way to test any of this?