i'm trying to do something similar with my multiclass group.

I want my priest to cast power infusion on my mage each time the cooldown is up, then assist my tank and cast holy smite.

The power infusion part works but since power infusion is now on cooldown, it never casts holy smite.

my code looks like
Code:
/cast [target=party4] power infusion
/assist party1
/cast holy smite
i like having it in that manner because all of my guys have different casting speeds and i just spam a single button for all of them.

anyone know of a way to cast a beneficial spell on a target and have it continue while the spell is on cooldown?