Open tab by number: Cmd + Alt + 1,2,3 ... / Ctrl + 1,2,3 ...
Zoom In: Cmd + / Ctrl +
Zoom Out: Cmd - / Ctrl -
Zoom to Fit: 0 Cmd / Ctrl 0
Zoom at 100%: Alt + Cmd + 0 / Ctrl + Alt + 0
Hide browser: Cmd + B / Ctrl + B
Hide Tools: Cmd + T / Ctrl + T
Hide Viewer : V + Alt + Cmd / Ctrl + Alt + V
Show Grid: Cmd + G / Ctrl + G
Assign color labels: + = green, - = red, and * = yellow
Move image to selections folder: Cmd + J / Ctrl + J
Move image to Trash: Cmd + Backspace / Ctrl + Backspace (to bypass the Trash: Cmd + Delete / Delete Ctrl +)
Copy developing settings: Shift + Cmd + C / Shift + Ctrl + C
Apply developing settings: Shift + Cmd + V / Shift + Ctrl + V
Copy a specific setting: Click the arrow next to the setting. Hold down the Alt key and click to close the pop-up menu.
Undo: Cmd + Z / Ctrl + Z
Redo: Shift + Cmd + Z / Shift + Ctrl + Z
Restore: Cmd + R / Ctrl + R
Exposure Warning: Cmd + E / Ctrl + E
Set 'variant compare': Enter
Delete 'variant compare': Cmd + Enter / Shift + Enter
Shoot with connected camera: Cmd + K / Ctrl + K