And is how you say, there's no very good dashboard making tutorial online available as forum topic or website page. There's a topic at MM2C forum about how make a dashboard, but it's really old, pretty complicate and doesn't use the best way that came successively, the one to use the MM2 Dashboard Placer program.
The only very good tutorial available about dashboard making is
this in PDF format and in English language, or it, or nothing...