After my first tests I would like to say:
Thank you so much JDHill !!!!
The handling is verry easy and well thought-out.
I also have a first question: Is there somewhere the option to start the Maxwell renderer with a lower priority - instead of command line "-p:low"? Might be helpful...!?
And a suggestion: It would be nice to have a picture preview during the material preview rendering inside the material editor. If the preview renders longer it would be nice to see the progress - with the option to interrupt it every time. But the last SL should be saved!