Moving around a 3D Window
A 3D Window allows you to view and move around 3D data.
TIP: Click View > 3D to open this window.
Scroll bars:
The 3D Window has its own vertical and horizontal scroll bars for controlling angular viewing. These scroll bars pan in the respective X or Y axes.
+ and * zoom keys:
You can use the + and * keys on the numeric keypad to zoom in and out in a 3D window respectively.
Mouse:
You can change the viewing parameters dynamically by clicking and holding in the 3D window while moving the cursor.
Clicking and holding down the mouse wheel while moving the mouse will orbit your position around the model. This gives an effect similar to turning a model in your hands.