With the Kalista changes in patch 6.24, I'm requesting one simple script.
Kalista's change: E (Rend) now refreshes both cd and mana even if only ONE unit is killed by it.
The request: Auto E every single time it can kill a minion. So like the scripts for auto-secure baron/dragon except for every single minion. Lol.
A little more complicated addition you can think about: add options to auto E when it can kill a minion and there's a stack on an enemy champion. This could mess you up when trading, so adding an option that only does this when the enemy champion is on the very edge of your E range would be sweet.
I don't think it would be too hard to make. The first one certainly wouldn't be. Once you have Hurricane you don't have an excuse to miss a single minion ever again.