One of the reasons I moved from iPhoto to Aperture was the ease with which I could view multiple images side-by-side at any zoom level for comparing shots. In the "Viewer" mode, as opposed to many-image "Browser", it's a simple matter of cmd-clicking or shift-clicking new pictures to present them on screen. This is fantastic, even if it leads me down the dark path to pixel-peeping, and I use it frequently.
However, what I don't know is how to keep actions from then applying to all photos in the multiple view. For a very common example, if I'm looking at three images and choose one to keep, two to discard, I don't know how to do that without recording which three images I was looking at, getting out of the multiple view, navigating to each one to score it individually.
It doesn't seem like this should be necessary. There's a concept of "current selected image" even when multiple are on the screen. But why do ratings apply to all? Worse yet, if I say "reset adjustments", how can I get the adjustments reset only on one image and not all?
