Military AI Works

For you AFCAD designers out here; what technique do you use to evenly space aircraft and keep them lined up? I am working on a modification and I am ready to add parking.

Second quesiton is more of an object question. Does anyone know where I can find the aircraft weather shelter object seen in Nellis and other MAIW airbases?

Input is greatly appreciated on both quesitons. Thank you.

To keep them in a straight line i use guidelines which are in the top right hand corner. They are 2 pink crosses and don't show on your scenery. To keep the aircraft evenly spaced i make the parking space a mtr bigger than required and look at the wing span on the parking icon, i put the wings just touching the edge of the next space. Hope this helps.