BeamViz allows you to visualize a beam of light in both plan view and 3D, helping you to choose proper instrument type and location. The beam instantly redraws if you change its beam angle, focus location, or instrument position.
The following diagram shows some of the terminology used by BeamViz:
BeamViz utilizes Plug-In Objects, meaning it draws beams according to a set of user-definable parameters, including beam angle, position height, and face plane. You will find a full list of parameters described for each object. You can edit an object’s parameters in the Object Info Palette.
As with all Plug-In Objects, the first time you place a beam in a document, Vectorworks will ask you for default parameters. You can set the default object parameters for the document by selecting the object’s tool, then clicking on the parameters button 
in the mode bar.
The full BeamViz package includes several plug-in objects and menus.