You are wasting a lot of time and space on here. This is the instructions clearly printed for install. Go back and look.
To Install:
Install the RWP
the copy and paste the GP38-2_BN.GeoPcDx from Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/BN/Engine
into
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5824/Engine
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5808/Engine
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5803/Engine
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5801/Engine
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5563/Engine
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5347/Engine
Assets/RSC/GP38-2BnPack01/RailVehicles/Diesel/GP38-2/NS5314/Engine