Hi Simon!
Loxone Config for Mac is not on our roadmap.
We use a lot of Macs ourselves at the Loxone offices, however reality is that most of our customers, especially the electricians out there, use Windows.
Doing a Mac port would bind a lot of our software teams resources for a long period of time. It would slow down development on our Smart Home functions.
I for myself use Virtual Box for Loxone Config and I'm quite happy with that.
Regards,
Florian