Sunflow offers other types of light (Point Light, Meshlight/Area Light, Directional Lights, Cornell Box) or global illumination (Instant GI, Irradiance Caching, Fake Ambient Term).
Is there a reason why these were not taken into account in Sweet Home 3D?

The configuration of these parameters is not very detailed in the Sunflow documentation and I noticed differences in terms with the source code .
Is it possible to test or integrate these "new" options in a plug-in or a derived version of SH3D?