The ability to set white levels by holding down the shift key and double-clicking on the White slider is extremely helpful. Being able to also set black levels by doing the same with the black slider is even helpfuler.
HOWEVER, what would bake this best of all would be shortcut keys for each of these functions or better yet, one key to do them both.
My question is, how does a Lightroom user go about getting Adobe to create one or two shortcut keys that would benefit everyone using their product? Would a kickstarter campaign be appropriate or maybe use one of those sites and create a petition that everyone could sign?