"The problem with that is if there is a crash it will take out everything instead of keeping the crash contained to just one window."

Fair point.

"Currently on Mac each MOI window is in its own separate process so you get a big boost in stability where a crash in one window does not interfere with any other windows. Hopefully at some point Apple will make the operating system handle multiple app windows in separate processes better than it does currently."

Apple have a reputation (as you're most probably aware ;) ) of doing everything their way. I'd use Linux if I could but many of the apps I prefer to use only work on Mac or Windows and although I've tried my hardest to try to with (to Windows) there is always something that will wind me up about Microsoft. TBH, they're all as bad as each other- in their 'own special way'! lol.

I'll keep working as is. It's a miracle the MoI exists at all. I mean that in a very sincere way as I love this software, and that it doesn't have the dreaded subscription model that so many others have now adopted.

- Tom