The LightWave Assets / Plugins database maintains a list of free and commercial third-party plugins available for LightWave.
Creates a disk that is defined by 3 points
Creates a circle from a 3 point selection
3 non-vital but still useful extra nodes
View the distance and angle between two selected points
Produces a 2 point poly chain between the two points you have selected
Produces 2 point polygons with both points at 0,0,0