Braved. Here is what you can try. And just make an airport to experiment with. You don't have to post it just use it to test things on. When in edit airport and say you add a Pirate Ship. Where it says Relative Position (ft) there is an x, y, and a z. The z will adjust the height of the ship or any object you are dealing with, say rocks, telephone poles. The Z adjusts the height of any object you are placing. A negative number lowers it a positive number will raise it. The x and y adjust side to side forward and back. When dealing with say walls, buildings, runways, large cliffs or boulders. You can use or try where it says Conform to Ground. This will place that object on the ground not floating in the air. You can even Have fun playing with where it says Orientation (deg) or even Scale (%). Just have fun experimenting moving things around. Hope this helps. Have fun.