@a63nt-5m1th Thank you so much for this. I did this in vehicles and it mostly worked. The extra parts I set scales' to 0 became invisible. However in some particular cars it caused weird issues.

https://www.gta5-mods.com/vehicles/2020-lexus-lc500-artisan-spirits-1-0
In this one the extra parts are still visible but they are not attached to their places anymore. They are spawning outside of the car at it's top left and right.

https://www.gta5-mods.com/vehicles/1972-amc-javelin-ringbrothers-defiant-add-on
This one (though this one not too important) caused a very interestingly weird issue. The extra parts are invisible but the driver seat turned backwards Passenger seat is ok but when I get in the driver seat my character turning backwards, also it's causing crash most of the times when I spawn the car (a lot less crash if I disable ped and vehicles with trainer).

You might have any idea how to make the extras invisible in these 2?