The editor is a plugin for MoI. MoI has a VERY ACTIVE community, with the owner/programmer answering any questions you have in the forum. It's hugely more easy to use than any other solids modelers and has one of the best if not the best NURBS to POLYS converter I've ever seen.

4 will be beta any day now, but you have to own 3 to be able to download it. It will probably take a year to go golden, so you're best off just purchasing 3 now.

It's a stunning app, perfect for solid design and concepts. IMO, one needs both a poly modeler AND a NURBS modeler (and a topology modeler). I still enjoy using both SketchUp and MoI and go between them often. I also really like 3D Coat for topology.

You won't go wrong trying MoI. It's that good.
https://discord.software/ https://downloader.vip/adobe-reader/ https://downloader.vip/itunes/