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Allows defining a photo as "backside" of another. It works differently than the 'Front2Back' plugin and is compatible with virtual albums and photos uploaded via HTTP, pLoader, Lightroom, etc.
To use: go to the edit page of the "backside" photo - you will find a checkbox and a place to identify the "frontside" photo.
The "backside" photo is moved to a private album not directly accessible by visitors.
Note : DO NOT delete the album "Private Back2Front album." Otherwise, the plugin will not work