Shortcut R added: shows menu to manually crop borders
While the menu for manually cropping borders is shown, you can use the keyboard digits (1-0) to adjust the slider
Shortcut Ctrl+Up/Down/Left/Right added: Manually crop selected border (only works if menu for manually cropping is opened; press R before)
Shortcut D added: duplicates image
Shortcut T added: shows menu for image trasnformations
Shortcut Q added: select source path for images to sort