The Static Geometry Object is one of many Helper Objects:

The static geometry object is a volume that contains entities that are combined into a single mesh at runtime, after which it never moves or changes.

All entities should be contained within the volume of the static geometry object, attached as child nodes.

The static geometry object is implemented as a NURBS curve list. To modify its settings, the custom parameter set nested beneath the NURBS curve list object must be selected.

• Width/Length/Height - The dimensions of the static geometry object, in world units.
• Cast Shadows - Indicates whether the static geometry casts shadows.

Other Settings

The static geometry object color can be modified with the object's Wireframe Color setting: