To view a slide show consisting of images found in a given folder on a disk, choose this item.  Checked because this this is the current selection.

To view a slide show consisting of images found in a given folder on a disk, choose this item.

To view a slide show consisting solely of currently open images, choose this item.  Checked because this this is the current selection.

To view a slide show consisting solely of currently open images, choose this item.