Ellipsoid

(3D only) Used to place an ellipsoid, a solid defined by three radii.

You can access this tool from the following:

Setting	Description
Axis	Sets the direction of the ellipsoid's axis (height). Points — Direction of height is defined graphically. AccuDraw can be used to define the drawing plane on which the points are placed. Screen X, Y, or Z — Direction of the height is set to the screen's X, Y, or Z axis. Drawing X, Y, or Z — Direction of the height is set to the drawing's, or model's, X, Y, or Z axis.
Primary Radius	If on, sets the primary axis radius for the ellipsoid.
Secondary Radius	If on, sets the secondary axis radius for the ellipsoid.
Tertiary Radius	If on, sets the tertiary axis radius for the ellipsoid.

Key-in: PLACE ELLIPSOID