So much thanks for all of you! This is what I call support! I'm glad to be part of this community!
Now everything is clear, at least I hope so!
Regarding the USALS coordinates: it was clear to me that I have to enter those, just I was very confused of what can be done in OSD and what by editing the conf files. Basically now I have a complete picture, thanks to you guys!
Now I need to find some time to configure everything (it is a little bit a challenge now, as my wife and my little daughter have different plans with me regarding the weekend:)).
One more question regarding channel scan:
is there a way I could scan just a given provider? For example, what should I do and how if I want to scan only the channels of UPC Direct on 0,8W Thor? I can do this on my STB (and later I delete the channels that are by UPC but for different country).