TL;DR:
let the player type in an amount to craft when clicking an item in the crafting menu with the middle mouse button.
What?:
The middle mouse button currently does nothing in the crafting menu, so let's have it make a text box pop up where the player can type in an exact amount of an item to ...

I too, would like to be able to live out my dream of being a Captain Planet villain :twisted:

I think having machines be slower would be going a bit overboard on this. Dirty water makes sense, but that shouldn't affect the actual speed of pumps, we should just have to put some sort of filtration ...