Command
What is the purpose of Terrain Layer?
Add terrain (elevation layer) from an elevation source to a 3D Map.
When is Terrain Layer active?
This command is always active.
How do I access Terrain Layer?
On the 3D tab, in the Map group, click Layers and then click Terrain Layer.
Dialog
Source
Choose an elevation source on which to drape a surface and vector layers.
Surface
Choose a surface to drape over the elevation source.