If you're not familiar with what a Macro is, it's a pre-programmed set of key presses that you can activate with a single key or button. While some Zilean champs may be using Macros, we don't recommend it. Besides, it's not that hard to hit his combo well and fling those bombs out really fast. Just press Q+W+Q quickly. Just don't screw up the order or realize Q is still on CD. If Q is still on cooldown, you'll use up W on it, and you'll just fling at the single bomb with everything on cool down.