I'm not referencing external xml files that would require editing the mainhud.xml at this time. (basically I do everything in my power to keep from doing so as it only complicates things in my humble opinion.)
With that said, I would be happy to see about adding a spell listing into the Help window though
It will take a little time with the holidays and other modifications i'm currenlty working on but i'll see what I can come up with.