You are asking for nonsense. It is same like asking for tutorial for baker how to bake a bread, or tutorial for driver how to turn left on the highway. You need to understand what the Trainz models are about, what attachment meshes and attachment points are about and what the config file containers and tags are about. I provided You enough of search keywords to google the appropriate tutos. And any fully equipped Trainz asset is kinda tutorial for You once You learn to read it ;-)
