Getting terrain at runtime

Thanks for the reply, however I’m not quite sure how this helps me. Unity has a GetHeights and SetHeights method of the terrain data which you can use to get and set the terrain height at runtime.
For my project, I want to be able to generate a world on game start then allow the player to raise and lower the terrain. It seems crazy that given how feature rich Unreal is for it to lack such functionality.

Many thanks,
Lee