When duplicating a gallery, it doesn't duplicate the images contained in the gallery, but the new gallery will inherit all the settings of the original gallery. This feature can save lots of time when creating multiple galleries with the same settings.
1. Navigate to the Library > Galleries area of your Fotomerchant account.
2. When you place your mouse on top of the gallery, you will see four icons appear beneath the gallery. Use the third icon to duplicate the gallery.
3. The gallery has been created, so you can upload your images as per usual. The tutorial in this link will walk you through the process of uploading images.