Should be able to fix the title if you go into advanced editing mode.

Anyway, modifier, or switching to a macro that also resets with target in icc would work. Problem with recasting a spell with a cooldown whenever you switch target is that it can get stuck if it is still on cooldown.

Personally I just made my macro recast flame shock every other lava burst, and the overall result was good enough for me to save the hassle of setting something better up. (granted, i'm not using /click atm)
But reset=target only works if the toon in question is actually assisting the main on each target instead of just casting on focustarget. (I like to keep my targets clean / open for use with cc targeting.)