Elevation Line Tool
Requirements:
- The Site layer is activated
 - Draw an elevation line inside the outline of a custom terrain
 
To add an elevation line:
- Click on the floor plan to locate the beginning of the elevation line.
 - Click several more times to place corners.
 - Double-click to locate the end of the elevation line.
 
To edit the shape of the line, double-click on it. In the editing mode, you will be able to move, add or delete points of the elevation line.
Detailed info:
The Elevation Line and Elevation Spline Tools
Creating a Custom Terrain
Introduction to the Site Layer and Terrain