Quote Originally Posted by Niwashi View Post
/micon "Cure"
/ac "Cure" <t>
/ac "Cure" <tt>
/ac "Cure" <ft>

That would try casting Cure on your target, but if that isn't possible (like when you have an enemy targeted), then it would try casting it on your target's target.
Might be wrong here, but pretty sure that would just mean Cure would cast on self, and the macro would never progress past that.