Open editor,
place houses, hangars or any kind of building with 3eden,
or in 2D: in init field of a empty helipad:
my_house = "Land_i_House_Big_02_V3_F" createVehicle (getpos player);
run preview,
in console watch, type: nearestBuilding (getpos player)
Everywhere you watch for that, moving the player, you'll never obtain an edited building. Only map one.