· Select all This command selects all the images in the File Open Container.
· Deselect all This command deselects all the images in the File Open Container, that is, it makes sure nothing is selected.
· Sticky select If not set, you must do Ctrl+click to add an image to the selection. If set, you need only click.
The shortcut key for Select all Ctrl+/
The shortcut key for Deselect all is Ctrl+\