by Julieanne Kost
• Option + Enter (Mac), Alt + Return (Win) will preview a Slideshow (in the preview window).
• Command + Enter (Mac), Control + Return (Win) will play a Slideshow (full screen).
• To stop a slide show tap the Escape key.
• To pause a Slideshow, tap the Spacebar. Tap the Spacebar again to resume playing.
• While the Slideshow is paused, tap the left/right arrows to move to the previous/next slide.