OpenRail Designer Help Let's Begin with OpenRail Designer Home Primary Attach Tools Scalable Terrain Model Scalable Terrain Model OverviewManaging Scalable Terrain ModelsScalable Terrain Model Manager dialogCreating a New Scalable Terrain ModelNew STM Settings dialogAdding Elevation Data to a STM FileSTM Elevation Sources Editor dialogImporting FilesSTM Import Options dialogConvert Generic Text dialogExporting to TMExtract a TM Element Extract Raster Grid Viewshed Analysis Extract Contours Drape Element Displaying the Scalable Terrain Model