Works with any version of LightWave Modeler.
AreaVolume calculates the surface area and volume of the selected polygons in the foreground layer. The volume makes sense when the object is a closed polyhedron with aligned, single-sided, flat polygons. The surface area calculation assumes only that the polygons are flat.
This is a straightforward implementation of Ronald N. Goldman's
Area of Planar Polygons and Volume of Polyhedra in Graphics Gems II.