MagicMan_841 From Canada, joined Jan 2002, 182 posts, RR: 0 Reply 2, posted (8 years 4 months 2 weeks 6 days 6 hours ago) and read 2718 times:
Wow... it's been ages since I've made scenery for FS but I'll try to help.
If I remember well, there are layers in the scenery of FS... that's how it was in 2000 anyway. So your add-on scenery needs to be on a higher-priority layer than the exclude. Just put your exclude on some other scenery that's below your add-on airport.