If you have Aperture 1.5 or later, the Special menu lets you have your Aperture library always to hand, so that you can browse projects and albums, preview photos and videos, view metadata and keywords, and copy photos.
Display the Special menu and select the Aperture Library item.
To preview a photo or video, select it in the Aperture Library submenu. To view the associated metadata, display the More Info submenu.
To copy a photo, display the Copy submenu and choose a size from the Image submenu.
To open Aperture, choose Aperture Library from the Special menu.
To display the number of versions in your projects, albums, books, light tables, slideshows, web journals, web pages, and galleries choose "Show Number of Versions" in the Aperture Library submenu.
If you do not see the Aperture Library item in the Special menu, you may need to add it to the menu. Open the Application Wizard pane in System Preferences, click Menus, and click the Customize Menus button. In the dialog that appears, click Special. Click the Add (+) button at the bottom of the list and choose Aperture Library to add the item to the menu.
Note: If the Aperture Library submenu is outdated or unavailable despite your Aperture library is not empty, open the Previews pane of the Aperture Preferences window and make sure you have enabled sharing of previews with iLife and iWorks and you are maintaining previews for all your projects.