Ability to bind boost and fling upward to a key. I absolutely love these new features found in fun stuff, but its annoying to have to open the radial menu to boost and fling my car every time. I feel like the lack of this is an oversight since other actions found in fun stuff can be bound to a key (explode car, break, deflate random tire, deflate all tires, etc.)
Honestly, I didn't even think of that. Surely there's one way or another to disable/enable it for specific servers?