3D Catalog Example
To zoom object: Click and hold right button inside picture to zoom object. Move your mouse up, down, forward, or back to adjust zoom.
Alternatively you can use the mouse wheel to zoom in and out.

To spin object: Click and hold  left button inside  picture  to spin object in all axis. Move your mouse up, down, forward, or back to rotate object.

To Select new object: Click on pictures below to focus  another example inside window.