Here is some information about keyboard short cuts. These are based on a Windows OS, so I appreciate MAC OS probably replaces Ctrl with CMD, but I am not a MAC user.
Setting up keyboard shortcuts
DT offers several keyboard shortcuts; however, you may be used to specific keyboard shortcuts from other programs, and it is possible to reassign DT keyboard shorts to match what you already know.
- In the preferences go to shortcuts and find the shortcut you which to alter
- Double click on it and follow the prompts to reassign keys to the shortcut
Pressing the letter H will reveal the list of keyboard short cuts. If you then press Alt the panel will stay active.
Shortcuts affecting screen real estate
Ctrl-Shift-H reveals or hides histogram.
Ctrl-F reveals or hides film strip
Ctrl-H reveals or hides the top header menu tabs
B reveals or hides the borders with arrows
Ctrl-Shift-R reveals or hides the right panel
Ctrl-Shift- L reveals or hides the left panel
Ctrl-Shift- T reveals or hides the top panel
Ctrl-Shift- B reveals or hides the bottom panel
Lighttable shortcuts
W previews a single image while the button is held down
Alt-W previews a single image in persistent view. Hitting W key will return lighttable to grid view.
Ctrl-W previews a single image with focus detection shown.
Mouse wheel scrolling will move previews through the collection
Ctrl-mouse wheel scroll allows zooming of the image being previewed
Compare view (culling) in lighttable
Select image you want to compare and then hit CTRL-X
Ctrl-mouse wheel zooms all displayed images
Ctrl-shift-mouse wheel zooms only the image where the curser hovers over
Click & drag pans all displayed images and can cause then to be positioned out of view
Click-shift & drag pans only the image that the curser hovers over
Zoom and pan functions work with a maximum of 4 images
Copying Image Settings from one image to others
Shift-Ctrl-C allows you to select what settings will be copied. By default, WB is not copied so choosing it here may be important for a series of images.
Ctrl-V pastes the copied settings to the selected image or multiple images.