Two additional buttons (cont'd)
The two additional buttons provide two controls for each of the three new cameras.
The three new cameras are independent of the main camera that is tied to the camera controls shown at the bottom of Figure 8.
One of the buttons has a picture of a hand on its face.
When you click that button, you can use the mouse in any of the three new quad view panels to move the camera to get a better look at an object.