Let the tide pool's view turn, and gather its controls: Q and E, a right-drag, or a two-finger twist turn it and a compass turns it back; R and F zoom; Z and X choose what to drop and Space drops it where you point; every key works from anywhere on the page; a double tap zooms in; buttons step between machines; a map of the whole shelf shows where you are and takes you where you tap; and a settings sheet lists the keys and turns the idle wandering, edge scrolling, and the map on or off. master