I recently began playing Railroads again and downloaded the patch 1.1. I have set up the editor in the settings.ini file and can launch it from main menu. When I go in it looks pretty standard and I have no problem with the cities, industry, trees, rocks, and so forth. But for the life of me I can't figure out how to make rivers. At the risk of sounding completely stupid can someone guide me through it? Also any other tips that could help me create a smoking monster map would be appreciated.