Thanks again very much!
The intent is only for learning. Sorry if I was not clear enough.
And no better way than to learn from others, how they do it or how they solve problems.
I must admit I've never heard of flow context, but I can see and understand how it works. When I discovered node-red I really thought it is all plug'n play. Wire a few nodes and there you go. How wrong I was 
But thats the fun of it. Finally I have a lot of ideas how to make real use of NR.
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