Apple Aperture - Manual (Page 149)

Chapter 6 Displaying Images in the Viewer 149
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Changing the Number of Images in the Viewer
You can specify whether the Viewer displays one image, three images, or multiple
images at a time. If your system uses multiple displays, you can configure your primary
and secondary displays to show single images, three images, or multiple images
simultaneously. The display settings you choose also set the display of images in
Full Screen mode.
To display a single image, do one of the following:
m Choose View > Main Viewer > Primary (or press Option-R).
m Choose Primary from the Viewer Mode pop-up menu in the control bar.
When the Viewer is set to show three images at a time, Aperture displays the selected
image in the center of the three images that appear in the Viewer.
To display three images, do one of the following:
m Choose View > Main Viewer > Three Up (or press Option-H).
m Choose Three Up from the Viewer Mode pop-up menu in the control bar.
When the Viewer is set to show multiple images, Aperture displays all selected images.
To display multiple images, do one of the following:
m Choose View > Main Viewer > Multi (or press Option-U).
m Choose Multi from the Viewer Mode pop-up menu in the control bar.
Choose Primary from
the Viewer Mode pop-up
menu to view a single
image on the screen.