I have seen a few mods where real world objects have been removed in order to create a mod. One that springs to mind is a gas station under repair where the pumps had been removed.
Link to Mod: https://www.gta5-mods.com/maps/gas-station-work
I have menyoo and I have tried removing these and saving the scenario however, when GTA loads up, the pumps are back.
Can anyone explain how this is achieved as I have a good idea for am mod but it would reply on having a couple of real world objects removed.