Thank you for understanding my friend. Inorganic modeling is not very my specialty, but I intend to create some exclusive characters for this content package. My initial idea is to create a content package that doesn't need to use any SGB resource, either images, 3D objects, characters... Trains will definitely be present in this package. One of the major updates will be an exclusive map for an underground station. I didn't quite understand what you meant by, elevation of roads or trails.
Greetings!