Hi, sure let me quickly explain what “ Shift + Mouse Left Double-Clicks” does in Lightroom or Adobe Camera RAW. When you do that on a slider, let’s say in the basic section: Exposure, Contrast, Highlights, Shadows, Whites, Blacks, Vibrance, Saturation (sliders in green dotted line areas) it will automatically adjust this slider to its Auto position without Auto adjusting the others.
As opposed to the “Auto” button which automatically adjust all Basic adjustments sliders. You can then decide which slider gets auto-adjusted.
I guess this is kind of a not quite known shortcut, you might want to try it. Quite sure you will love it. Does that makes sense?
Thank you!