To Turn the Display of the UCS Icon On and Off

Enter ucsicon at the Command prompt, and enter ON or OFF.
you can turn off the UCS icon in a single viewport or all viewports. Each layout also provides a UCS icon in paper space.
To display or hide the UCS icon based on the current visual style , and whether perspective is turned on
- Use UCS2DDISPLAYSETTING to hide the UCS icon when the current visual style is 2D Wireframe.
- Use UCS3DPARADISPLAYSETTING to hide the UCS icon when perspective is turned off in a viewport with a 3D visual style.
- Use UCS3DPERPDISPLAYSETTING to hide the UCS icon when perspective is turned on in a viewport with a 3D visual style.