The navigation bar is a user interface element from which you can access both unified and product-specific navigation tools.
Unified navigation tools (such as Autodesk® ViewCube® and SteeringWheels) are those that can be found across many Autodesk products. Product-specific navigation tools are unique to a product. The navigation bar floats over and along one of the sides of the Model Display pane.
To display the Navigation bar
To close the Navigation bar