Dear meshman, I want to make some changes to the airport of my hometown (EBBT). I have downloaded this scenery from the internet via Avsim. Since there is an option in SBuilder to add a BGL or XML file, I thougt this was the solution. If I understand it correct, you must start the design of an airpo...

Since I'm a newbe in SBuilder I have a problem.
After starting a new project I try to add a BGL file from another aiport.
My screen stays white - nothing happens.
What am I doing wrong??