Is there an explanation why the Mac version is so far behind the Window/Linux version?
I was just looking for the height map, didn't find it and then realized the version difference.
Not enough time and not enough money to hire a programmer for it, so it will always lack some features. It is a completely different software developed individually.
Oh - no shared code base? That explains a lot.
The macos folder made it look like a shared codebase:
Maybe worth trying to get it working with Mono also on macOS?
We tried it open source and got no real help, so we closed it. Mono was our first try and this failed so fatal, we wrote a mac version from scratch. Winformws for mono on mac are painfully slow, ugly and buggy. No one would use that.