moving a photo between galleries
I seriously can't believe I can't figure this out or that it isn't obvious. I want to move a photo from one gallery to another; I go into Organizer, then into a gallery, then drag the photo over to the list of galleries on the left side. I hover over a gallery name, it gets lit up with a rectangle around it telling me it's a drop target, I release the mouse button thinking I've just done a drag-and-drop. And nothing happens; the photo isn't moved or copied. Tried selecting the photo first; no change.. Right-click the photo - no options.
I give up. How in the heck do I move a photo between galleries?