Is there any way to change the properties of an item to only hold a certain item? For instance say you have a rail car that has the appearance that it is carrying steel, is there anyway to restrict it to only carry steel plates? I am asking because if so this could add a nice little railway complexi...

I have just started using all of the Yuoki Industries train mods, and I am one who likes aesthetic appealing gameplay. You train mods are beautifully done, btw. But I also like to play with Bobs mods which add a lot of extra ores into the game as I am sure you are aware of. I was just wondering if t...