Hmmmm...I think that the fun and the point of the entire process is to make the whole airport yourself. It is not that hard, is it? To me, a runway, apron and taxiway is the easy part, and part of the learning curve. Yes, you could have the program lay down a flatten, exclude, runway,etc., but then you wouldn't understand how and why they work. You have to start learning from the ground up. The ADE manual is great. You want a challange, download gmax....or become a programer and write ADE. Hats off to you guys. Learning to create an airport may seem hard at first, if you've never done anything like it, but read the manual and dive in. You can't break anything.
Bob