It would be great if we had the ability to macro buffs and have a button to cast them. It's especially annoying to spend 10-15 minutes to buff and whatnot. If you ran out of nano or something, you could doubeclick on the icon in the "Buff Script" window and it would resume from there. Or something like that.
Make it so you can only do this with buffs to prevent macroing with nukes / drains / heals.
Just a thought.
~Chris