Just got my very first scenario running. Lots of thanks to Matt, Josh and others for their helpful comments. It is not working as it should, but a train is riding from A to B. So it's a start. I will write down how I did it later, so you can use it as a tutorial.
Matt create something, which is doing the job. I will pay attention to scenario creation but I will focus more on understanding how it works. This will take a bit longer to create of course. Undertsanding how the system works is very helpful and Matt is more focusisng on pushing the buttons.
Really glad to hear you got something working as that's the key thing, getting something going as a start.