This mod adds some nice keybinds like the one to crouch and other that I don't remember. This mod isn't mine, just sharing. It's Kyodan's property.
1. Extract to your EYE installation folder (default is C:\Program Files\Steam\steamapps\common\eye\EYE).
2. Rebind your controls in the Options menu as you see fit.
3. Kick some ***.