Previous image: Moves to the image just before the one currently viewed

Play backward in time

Play forward in time

Next image: Moves to the image just after the one currently viewed

Pause: When you click either Play backward in time or Play forward in time, the button turns into a pause button. This lets you pause playback without having to move your mouse pointer.

Shuttle slider: Lets you adjust the speed. Drag it to the right to increase forward play speed. Drag to the left to increase backward play speed.