Check for marked pictures when viewer is opened: The viewer will check if any images in the folder have already been marked in a previous session.
Display Marked Pictures pane when a picture is marked: When you mark an image in the viewer, the Marked Pictures pane will open automatically. If this option is turned off you can still open the pane manually.
Save marked images to a file collection: By default, Opus records images you mark to a file collection. This option lets you configure the name of that collection. The default, Marked Pictures\%F uses %F to insert the name of the current folder. You can also use %D to insert the current date. If you turn this option off, the viewer will use checkbox mode in the parent Lister to indicate images that you mark.
Ask for collection name: The viewer will prompt you to enter a name for the collection when you begin a new marking session.
Open collection when viewer is closed: After you mark some images and close the viewer, the collection will be automatically opened in a new tab.