I'm a keyboard guy. I like to be fast when I edit and process my photos. Here are a few Lightroom shortcuts that I use in my workflow.
- G: Grid Mode
- - and = : Change the size of the photos in Grid Mode
- E: Show the selected picture in Photo Mode
- F: Go to the Full Screen Mode with the lights out
- N: Show only the selected photos. It helps to choose which one is the best when you have 3 or 4 that look the same. When you want to eliminate one, click on the X in the lower right corner of the picture.
- C: Comparison Mode for comparing two photos together. You can zoom in this mode
- L: Lights out
- 0-5: Number of stars
- 6-9: Color Code
- P, U, X: Pick, Unflag or Reject the photo
- B: Add to the quick collection
- J: Toggle information above the thumbnails in Grid Mode
- I: Toggle information above the photo in Photo Mode
- TAB: Toggle the sidebars display
- Shift-TAB: Toggle all bars display
- V: Convert the photo to Black and White or change it back to Color
- CTRL-A and CTRL-D (CMD on Mac): Select All and Unselect All
- D: Switch to the Develop Module
- R: Resize and Crop Tool
- W: White balance color picker
- K: Brush Tool
- Q: Patch Tool
- M: Graduated Filter Tool
- Shift-M: Radial Filter Tool
- Z: Zoom In/Out
- J: Show the overexposed (red) and underexposed (blue) areas in the photo
- O: Toggle the Mask when using the Brush Tool. Toggle the Composition Overlay when using the Resizing Tool.
- H: Toggle the Markers when using the different tools
- Y: Split the screen to show the Before and After
- \: Toggle between the Before and After
- Double-Click: Reset the setting when you double click on it. Holding the ALT key will show you the resetting option too.
I hope this will be helpful. For me, it speeds up the editing and post-processing a lot.