Sadly that distance too often reduces itself to zero as you pass right by or you go by a great deal of a runway/taxiway distance with no visible custom lights and signs. I guess we're just going to stick with the ever heavy trading off game game.
That's not the case! Have you read my explanation ? If you act on the "Anti PopUp" slider of the Addon Manager, you can customize the loading range of all our 3d objects to your liking, up to 10x the default one.