The Primitive utility is used to add, modify, and remove graphics primitives. A primitive specifies a 2D construct, such as a line or circle, that can be displayed in the 3D Window.
To access the Primitive utility, select Primitives... from the Utilities menu.
To add a new primitive, click the Add button to display the Primitive Details property page. On the Details page, select the type of primitive.
To modify an existing primitive, click More....
To modify the display attributes for multiple primitives of the same type (for example, line primitives), use Shift-click to select the primitives and then click Modify.... The Primitive Details property page is displayed.
After modifying a primitive and dismissing the Details page, click OK or Apply on the main Primitives page to see the changes in the 3D Window.
To delete a primitive, select it and click Remove. Use Shift-click to delete multiple primitives.
To delete all primitives in the list, click Remove All.