I've just begun downloading AFCAD files from various authors and like them all. Great work guys and to the creator of AFCAD.Here is my question or curiosity.Are these files to add gates, etc. meant for a DEFAULT airport or add-on airport or both?I've noticed that if I add these files (or improvements) to add-on airports, sometimes the taxiway centerlines are off center or the AI aircraft taxi on the grass.Would or should an author of any AFCAD file let the simmers know via readme or whatever what airport he improved, ie default or add-on?Hope someone understands what I'm trying to ask.Thanks,Mike

In most cases where AFCAD gates and taxi lines have been added the author will identify whether it is for a default airport or an add on in the 'Readme' file.Other than that it is trial and error - make sure you have a backup of the bgl in which the airport resides just in case you have to go back to it.