Apple Aperture 2 - Manual (Page 519)

Chapter 18 Creating Slideshow Presentations 519
IV
Playing Your Slideshow on Your Main Display Only
Your slideshow automatically plays according to your default display setup. If you use a
dual-display system but want to view a slideshow only on your main display, you can
easily make that change in the Slideshow Presets dialog.
To play your slideshow only on your main display:
1 Select a set of images to be displayed in your slideshow.
2 Choose File > Slideshow (or press Shift-S).
The Run Slideshow dialog appears.
3 Choose Edit from the Slideshow Preset pop-up menu.
The Slideshow Presets dialog appears.
4 Do one of the following:
 Select a slideshow preset to modify.
 Create a new slideshow preset.
5 In the Slideshow Presets dialog, select the “Play slideshow on main display only” checkbox.
6 Click OK.
The Run Slideshow dialog appears.
7 Click Start to begin playing the slideshow presentation.
Select this checkbox.