Okay, thanks. That still does not tell me where to find the node that was named 'Vasc. Level' though... or how to construct the External input node on the right (output node names are also custom there I suspect)?

My apologies for all the questions but if I would like to recreate this ( since  i asked the question) I would need to know.

If this is explained in the manual, just tell me to read it, but  I don't recall.  

Really appreciate the help!