Converting to AI or static

Is it possible to convert a "flyable" vehicle to AI or static (scenery) If so, how?? I have a great US Coast guard cutter, that I want to use for takeoff and landing small USCG helicopters. I want to still be able to use a moveable copy in other flights. Or can I use it as staticc scenery, and place it where I want???

🙄 Blinky