I have two macros, set next to each other. Sorry no screenie but at work atm. Basically on the left I have the "turn on" macro (ballad for ex) then to the right of it a separate on to turn it "off".

First macro:
/micon "Mage's Ballad"
/ac "Mage's Ballad"
/p >> Mage's Ballad -Just used it!- Mana Refresh!! << <se.7>

Second macro(I use one of the X's for this icon):
/ac "Mage's Ballad"

Hope it helps.

Syn