The ViewCube lets you change the orientation and view objects in the Viewer window. It tools let you adjust the detail of objects and create views that define an area of a model as well as use preset views to restore a known view or orientation.
The ViewCube is a 3D navigation tool that appears in the top-right corner of the Viewer window. While the ViewCube is inactive, it displays the current view of the model based on the current UCS and the North direction defined by the WCS of the model.
ViewCube
Position your mouse over the ViewCube to activate it. When the ViewCube is active, you can switch to one of the preset views, roll the current view, or change to the Home view of the model. While the ViewCube is inactive, it gives you visual feedback about the current view of objects in the Viewer window as view changes occur.
See ViewCube.
SteeringWheels are tracking menus that let you access different 3D navigation tools from a single tool.
SteeringWheels save you time by combining many common navigation tools into a single interface. They are contextual to the scene that you are viewing.
SteeringWheels
SteeringWheels are divided into different sections known as wedges. Each wedge on a wheel represents a single navigation tool that lets you pan, zoom, or manipulate the current view of a model in different ways.
See SteeringWheels.