How do I put or copy a photo in two albums?

Navigate to the picture you want to move or copy. Below the photo you should see some select boxes that say to copy or move.

If you want the photo to be in multiple albums, use the copy select box and choose the same Family Site. After you select the site it will show a list of all the albums available. Simply select the one your want and it will show a check mark when it's finished copying.