Yup, I had the same problem in own airport project the first time around.
The proper structure is this:
- Create a new Project
- Add a new Package to the project. A Package consists of one or more Asset Groups. When you first create a Package you’re asked what type of Asset Group you want in it (ArtProj, BGL, CGL, etc.) but you can add more Groups to the Package afterwards. Airport data (polys, runways, etc.) is “scenery”, hence you need a BGL Group.
- Save the Project.
- Open the Inspector window (Project Editor > View > Inspector)
- Open the Package you just created by clicking on the little arrow beside it and click on the BGL Asset Group you created.
- In the Inspector you’ll find some info about the Asset Group including a button to Load in Editor. Click on that. (And remember to save your project again whenever you make any changes in the Inspector window)
- The Scenery Editor, Material Library and - depending on your settings - other windows will open with the selected BGL Asset Group loaded. Here you can now edit the scenery, draw polys, runways, taxyways, yadda, yadda.
- To save all the scenery objects you just created click on the Save Scenery button in the Scenery Editor.
And that’s it. When you want to come back to the project later you follow the same steps:
Load Project, open the desired scenery Package, load the BGL Asset Group via the Inspector window, edit away.
The Build button is not used to save the project files you’re working with. Build is the final step that creates the actual addon files you then copy to your Community folder so the sim can use them.
