Virtual Copies/Snapshots/Presets 

Lightroom Profiles and Presets (Adaptive Presets) (Brush Presets)

Save Develop Presets with catalog

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Collections;

•Smart Collections/Collection Sets

•Favorite Collections/Target Collections

Tone Curve

Color Toning/Split Toning/Color Grading

Tons of info on color grading and color toning. in the Resources section of this web site: Color Grading and here: Color Grading