whats wrong ?
GSX will warn you if a parking spot is either “too small for your aircraft”, or is already taken by an AI. However, a big change from previous versions is that will allow you to use it anyway.
This option allows to override the parking radius in the airport .BGL, used to verify if a parking is too small to fit a certain parking. Sometimes, it’s possible a scenery has actual space available around a parking spot, but the scenery designer has specified a smaller radius for that parking spot, maybe for AI flow reasons, or to fix problems with default ground vehicles, or simply because of an oversight.
This option will disable the “Parking Too Small” warning. Note that, with this version, GSX will always allow to use a parking, even if it says it’s too small but, with this option, you can also disable the warning.