Actually, when using the "lightbox" of all the photos together, I just realized that you can click on a photo in full screen mode, which zooms it to near full screen, and then use the arrow keys to move between photos as desired. Does not provide the Synth overlap, but sometimes that is too busy a view. And to zoom in a few stops more for full resolution, if the mouse on the the left, I can click on zoom in and use my right hand on the directional arrows to move between photos as desired after waiting for the details to load. This option should be pointed out to users with an example in general help? I wonder if the Control+/- combo works for zooming...that i will try, but better, without using a mouse would be maybe the Z/X keys for zooming in/out? Going farther, gestures and voice activation might be desired for others. Time to add more staff!