Gotta be careful where you add it in some cars. A flatcar might have 3 different attachments points, 1 for large conatinaers, 2 for smaller ones and several for general goods. Put the product on the wrong point and you get anything from overlapping products to 1 lone haybale on a flatcar. Anything that could carry general goods could carry haybales so wherever general goods is in a config file, it should be safe to add haybales to that part.