+ and - zoom, 0 fits, R rotates, H flips, Space plays or pauses, F switches the view, I toggles details, D downloads, Delete opens the review and ? opens the shortcuts. Each key clicks the toolbar's own control, so an unavailable one does nothing. The keys stay out of form fields, a focused video, raw metadata and open dialogs, and Ctrl, Cmd or Alt turns them off. The overlay lists them in groups and fits at 390 px (D170).