Hello Anton
Welcome to the world of Flight Sims! 🙂
All the data (cfg, sdx, xml and SimObjects) in the “ProgramData\12bPilot\SODE\” location are filled by 3rd party add-ons. A basic SODE install will – as you noticed – leave the folder empty.
Once you buy/download a 3rd party airport that includes SODE-animated jetways, then usually their installers will put all the necessary files for you in that “ProgramData\12bPilot\SODE\” location.
Once SODE sees that there are correct files in there, you will be given the option to operate the jetways from the SODE Tab+S menu or via GSX’s menu. I suggest to use the GSX menu.
As far as I know, EDDF from Aerosoft does not include SODE-animated jetways, so that’s why you don’t see anything in the SODE menu.