This is a shot of the default airport Matinicus off the east coast of Maine. The default airport boundary is in place but there's nothing else there so I decided to correct that. You can make out the actual satellite position and orientation of the rwy to the left, which I moved in AFX. What I want to do is remove the default boundary, have the autogen return to that area and open up the actual airport location in it's new position. Using SBuilderX, I made an exclude poly for the airport boundary and it worked great, but the open space remains. shouldn't the autogen return to that area once the boundary is eliminated?