You can do all sorts with the UI in Quest:
viewtopic.php?f=18&t=5111If you look down a few posts you will come to "How to add a status box", which is more-or-less what you want.
However, I am not sure if that it true of gamebooks, which are much more restricted. If I was doing it, I would make a text adventure and disguise it to look like a game book.
viewtopic.php?f=18&t=4772&hilit=gamebook