Can I copy photos between galleries?

I can't find a way to copy photos from one gallery to another or add them by tags, categories or from existing galleries.

Let's say there's a gallery named "all photos" and sub-galleries named "abstract", "people", "b/w", "landscapes" and so on. Is there any way to add/copy/duplicate single (or even all) photos from "all" to "people", "b/w", ...?

Do I really have to upload photos matching two tags/categories twice (e.g. "people" & "b/w")? Because that means I'd also have to add the tags/categories, description and title manually a second time...

Thanks!