How to > Organize pictures
Move/copy albums and folders
To move or copy pictures and albums, mouse over the picture or album until the arrow icon appears and then click “Move to...” or “Copy to...”
Whether moving or copying, you’ll be asked to what folder or album you'd like to place the selected objects. When you select “Copy to...”, a duplicate is placed in the destination; the original remains where it was. When you select “Move to...”, the original gets moved to the destination.
For pictures, there’s also a pulldown option called “Duplicate.” It’s a shortcut method for copying a picture within the same album. The duplicated image will appear right next to the original picture unless you have your “Sort by” option set to Custom.