Pretty self explanatory. Let us try out and save a setup similar to loading a ghost lap. I wish I had hundreds of hours to perfect a car setup at each track, but I don't. Maybe even make it optional when you set a TT lap to share your setup. I'm sure a few people out there want to keep it a secret, and that is their right I guess.
Also can't we have separate leaderboards based on what assists are one, or even let us see what assists are being used in the leaderboard?