I have noticed that NI modifies some moded vehicles ingame, adding the extra cargo and others not. For instance: with the F12 Volvos Truck-Trailers by onionjack the grain-truck can take cement with no changes on my part, but the tipper remains with the vanilla cargo. Or with the F12-Semitrailers: Tanktruck and 20ft Tanktainer-Truck have "automaticly" all suitable NI Cargo. But the Box-Truck, the standart 20ft Containers and the 26ft tanktainers don´t show NI-Cargo.
How comes, how is this controlles?
And on the other side: how do I prevent NI to overwrite my designated supply-chain vehicles? (These are vehicles usualy restricted to take only input and output cargo to/from a certain factory and nothing else)