@ MegatopLover

You did it!! You exactly detected my problem in undestanding the concourse plans - now everything is (or at least seems to be) perfectly clear to me. Thanks a lot for your help!

Just a few words on the background of my question.

The main reason for asking was that (although I never had any real problems in finding the right way inside the airports I have visited so far) I like to be well informed about the areas I can access without further checks - and without problems when leaving again. This is, as you can imagine, because I like long walks before sitting for hours during the flight. So NBIA seems to be quite right for me. Second reason was that I'll be travelling in TG/economy this time and can only make use of one of the lounges accessible by Priority Pass or Loungepass. So it was important to know if there could arise any problems in getting to the different areas on level 3.

Bye, oholz