It is common for photos to appear in several albums at once. For instance I have individual albums for my nieces and my cats, and photos commonly feature several of these people in the same photo.

When I select photos in the main "Photos" tab, I get an "Add to album" button.

When I select photos within an album, the same button does not appear. I only have the options to download or remove from the current album.

I would like the "Add to album" button to appear when photos are selected in an album. This would also help with album organisation in general.

As a enhancement, the "Add to album" button should also have "Favourites" shown as an album, to enable photos to be added to favourites easily.