ViewCube provides visual feedback of the current orientation of a model. You can use the ViewCube tool to adjust the viewpoint of the model.
Use the ViewCube menu to restore and define the Home view of a model, switch between view projection modes, and change the interactive behavior and appearance of the ViewCube tool.
The ViewCube tool offers many intuitive ways to reorient the view of a model.
With the ViewCube tool you can change the current UCS for the model to one of the named UCSs saved with the model or you can define a new UCS.