Although there is a clear logic behind the way X-Plane handles scenery, it can be a bit confusing at first. Hopefully the explanations and tutorials will help you see that the basics are actually quite simple:


New exclusion method, exclusions and scenery conflicts

In X-Plane 10.45 a new exclusion method is implemented which prevents conflicts between the Global and Prefab Airports and other Custom Scenery


How to add an apt.dat file to a scenery package

So you have a scenery package with a missing apt.dat file and probably a scenery conflict as a result. Adding an apt.dat file is actually quite simple: just follow these steps.