[robg adds: I also accidentally discovered this behavior when I Command-clicked one photo while editing another. I assumed then that this was a documented feature of the program, so I let it pass. However, in reading the manual today, it doesn't appear that it's documented at all. The manual goes so far as to state (my emphasis added) "If your library, an album, or an individual photo is selected in organize view, you can click the Edit button to switch to edit view." It does talk about Compare mode, but nothing about editing multiple images at once.]

