@alminsk Now that you've been working in MSR for a short while it's time to revisit the manual. You'll find things that may not have made sense or that you didn't see a use for now make much more sense.
Focus on how to understand the signs MSR is giving you to help you troubleshoot.
I, too, came from the Vera Reactor plugin. "Same but different" applies here - but in all good ways.