You can create hills, mountains, hollows or ponds in the Terrain layer of the Layout window.
Creating a Mountain
There are two ways to create "mountain" terrain.
You can generate the terrain by importing a grayscale image file (PICT, JPEG, BMP or TIFF).
White pixels are high, black pixels are low and gray pixels are in-between.
You can also generate the terrain automatically by selecting the menu item "Generate automatically".
You can move and resize the terrain by dragging.
If there is an elevated terrain on ground track cells with a track then a tunnel for the track will be created automatically.
Terrain layer on Layout window
Creating a hollow or a pond
If "hollow" checkbox is checked then a mountain terrain is turned into a hollow. If "water in a hollow" checkbox is checked then the hollow terrain is turned into pond.
Terrain and Landscape tab on Terrain Window
Edit Terrain Color
You can select the color of the terrain in the Terrain window by defining high, middle, low elevation and hollow colors.
Setting Landscape
You can select the kind of sky texture in the Terrain window or choose fog if you like. These settings affect the 3D views.