How to spin objects in blueprint view?

Question:  How to spin objects in blueprint view?

Answer:

1. Select an object or group of objects
2. Place the mouse pointer over the spin multi-throttle.  To spin the objects in 45-degree increments, click the appropriate button on the dial.
3. To spin in other increments, click and hold the center of the multi-throttle, then drag the scroll button that appears to the left or right.  The farther from the center the button is dragged, the greater the effect.