See my tutorials on map editor :
- Introduction to the Map Editor
- Introduction to the Map Editor/Basic Editor Functions
- Introduction to the Map Editor/Launching the Map Editor
- Introduction to the Map Editor/Saving, Loading, Sectors, and Files
- Prefabs
- Prefabs/Connecting your first Prefab
- Prefabs/Prefab Nodes
- Roads
- Roads/Advanced Road Construction
- Roads/Creating a Simple Road
- Roads/Road Item Default Properties Dialog
- Roads/Road Item Properties Dialog
- Roads/Road Node Manipulation