Thank you very much, Marco and Pilou, much appreciated!

Pilou, I started the voxel work around 2004 in 3ds Max, extruding quad polygons by fixed amounts, using the grid. As far as I know there were no dedicated voxel editors available in those days.

The first voxel editor I found was Paint3D for Windows. I used that for a number of years, and also helped develop it with feature suggestions and testing. But the programmer has discontinued development by now.

When I moved over to the Mac, I started using Cubicle and MagicaVoxel. Both have their strengths and weaknesses. There's also a third option, VoxelShop, but that's using a Java environment. I prefer native applications if possible. I'm really looking forward to the native Mac version of MoI V4 for that matter.

All the best,