It might be possible. Only thing is, it wouldn't be a "true tab," and every chat window will have it. If you do one mod to one window, it will do it to every window that that window controls (make sense?) Example: You make the hotbars 200% scale instead of 100%. Every hotbar you have will be 200%, not just one you want. This being said, you wouldn't exactly be able to have a "tab", but you could have a button that says "I wanna view my quest info" and that comes up in the space provided instead of the chat window.
That's what I can think of. Not genius enough to figure out how to do it, but I'm sure someone can tell me if this is even possible.
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