mouse invert idea--have toggle-able for interacting mode and allow invert for look

[Chris]

I saw that there is no mouse invert--would it be possible to have a key like shift or something to toggle between Y-invert or not. I know a lot of space games and some FPS that have you manipulate inventory etc. are able to use both schemes at the same time through a toggle. Game looks awesome, but I need that FPS y-invert also