How can I import railtracks to LOTUS?

i wanted to import my rail track, but it seen in LOTUS. You can see the model in the picture:

I imported with Content Tool and i chosed Rail button. I imported succesfully, but it doesn't seen at the rails. After, i used the Railcrossings button. It doen't work too. After, I wainted to import to game with Map Editor's Rail Tracks's New button, but it doesn't work too. Unfortunately I don't find description of this in the Lexicon.