Hi,
Did you ever get anywhere with this option? It's the been the bane of my life for years and I've posted several wishlists etc to Graphisoft, all to no effect. I did find a special shadow plugin, but it was only for the Japanese version. Naturally, I forget about it for a while till council calls up and 'urgently' need an elevation of the building showing the effects on the neighbouring properties. Also naturally, they don't accept 3D views...
Let me know how you went..
Cheers
Warwick Lloyd-Martin
3 D E N V I R O N M E N T
http://www.3de.com.au
Windows 11 Pro 64bit
ArchiCad 4.55>27 AUS
Lumion 12.5/2023
D5 Render