Thanks, it does work now but how should one know that there is a new Addon Manager (link only available at the FAQ)?
After bringing back the file LSZH_SCA.bgl (renamed for version 2.1) also the runway lights are working and panels plus menue line are available again.
Only at times during daylight Terminal E is "flickering" a bit as if there are faulty fluorescent lights inside the terminal
and of course the people are still walking backwards.