Hey, thanks for the post!
You can rebind controls in the input menu by clicking them - and right click erases bindings. I should add a little description to that page to clarify, because I can see how it isn’t clear (my bad!).
A sound cue is a good idea and can be done. The visuals part - others have mentioned that it’s a bit unpredictable, and your idea of showing it coming up is something that’d solve it I feel. I’ll write these down and I should get them done in some shape or form for the part 2 demo. :)
I can add a darkness slider so that every player can get something that suits them - it’s a good point, I shouldn’t assume everyone has my screen or brightness so the slider should take care of that.