The mini Full Navigation wheel has the same functionality as the Full Navigation Wheel, but in a concise format. This navigation wheel enables you to view individual objects and walk through and around the model.
When the mini Full Navigation Wheel is displayed, you can press and hold the middle mouse button to orbit the model, scroll the wheel button to zoom in and out, and hold down while pressing and holding the middle mouse button, to pan.
You can control the appearance of the wheels by switching between the different styles of wheels that are available, or by adjusting the size and opacity. Wheels (except the 2D Navigation wheel) are available in two different styles: big and mini. The size of a wheel controls how large or small the wedges and labels appear on the wheel; the opacity level controls the visibility of the objects in the model behind the wheel.