Tabbed or even "Quasi-Tabbed" Hotbars

[metavirus]

I am sure this isn't even possible but I thought I'd throw it out there. Would it be at all possible to make a mod that would "tab" a hotbar? I have a couple of infrequently-used hotbars I have up to be used for non-frequest spells, chat macros, etc. It would be nice to have these hotbar have tabs with tiny labels that would indicate what I designate each hotbar group for. It's sometimes difficult for me to remember if the group of buttons I want is either "up" or "down" from the currently open hotbar.

Thanks for all the great mods!