I'm not sure I totally understand your request, but anyway... I don't plan on doing anything in a way that is geared purly towards iGuidance. In V3, I think you may be able to do what you want by making skins for categories and items, and when you click an item have it send the hot-keys to enter the address you want. Even if I did do something specifically for iGuidance, I think it would have to work the same way (since I would have no way of knowing the order of your favorites in iG's favorites list).
I am investigating the possibility of adding text to buttons through the ini. This way you could easily do what you want without having to edit graphic files.