I'd love to see priority modifiers.

For example:

Code:
/micon Cure
/ac Cure <mo,tt,t,me>
This would case Cure on my mousover first, if no mouseover then my target's target, if that's not eligible my target, and if none of the above, me.

Mainly because I'm currently using:

Code:
/micon "Cure"
/ac Cure <mo>
/ac Cure <tt>
/ac Cure <t>
/ac Cure <me>
And it's annoying getting the error message (Not the chat log one, the one that's top-centre of the screen) every single time.