Try looking in the following locations for the GSX .ini file for your airport:
They can be in one of two places:
- First in the local \scenery folder where your Linz airport is installed, usually found together with the scenery .BGL files
- OR if an .INI file for the same ICAO+AFCAD combination is found in the local C:Users\<username>\appdata\roaming\Virtuali\GSX folder, this one will take precedence over the one in the local scenery folder
The GSX airport profile .ini file will usually have some filename indication of the airport e.g. lowl-xxxxxx.ini