The plug-in is available to users of Vectorworks Design Series products with an active membership in Vectorworks Service Select.
You can access the plugin by selecting Tools>Plug-Ins>Enable NBS Chorus within your Vectorworks product
The plug-in works on all of Vectorworks 2020 Service Pack 3 design Series products (Architect, Landmark, Spotlight and Designer).
It does not work on the free Vectorworks Viewer.
The plug-in is also compatible with both Windows and Mac.