... thanks for your help.
There is another thing - I put in some searchligts (flak) and turned the time to 22:00 hours. You have a beautiful night but the searchlights dont go on when enemy planes are arround. Nowhere is written how to set those so that they flash up at night. As the editor is quite extensive (once everything in it works) there should be a more detailed kind of read-me or explanation of any kind on how to use everything, for those who take a bit longer to find out, no ?
