SHAPE also has some primitive models in its Library. To add a Primitive goto,
Menu Bar->Create->Primitive,

  • Sphere (Alt+S)
  • Plane (Alt+F) (Alt+P adds a projector F stands for Flat)
  • Box (Alt+B)
  • Cylinder (Alt+C)
  • Null (Alt + N)
    A null is an invisible object, it does nothing but it does have uses. A null can be used as an organisational tool in the Object tree or it can be used as a coordinate to rotate objects around. It will not be rendrered on the output even though it does have representation properties, None, Axis, Box and Sphere these will not be shown on the output.