for FPS games(using mouse to control), the most important and special part of a game's config is not its buttons' mapping but its Intelligent Engine(IE), which can provide precise and excellent mouse control. this IE is trained in the game and then embedded in this dedicated config.
So it is not just some parameters to set,
it is a completely new IE which is trained for a certain game.
But we will evaluate your suggestion too:)
for now, please post all your games in need here,
will try our best to add them asap.
For No Man's Sky, many users will just use a controller or flight stick,
then please just add "joysticks and controllers",
there is no customized IE in it.