Cliffs and terraces (DM parameter)
The 'cliffs and terraces' slider in the design map parameters wizard determines the number and strength of the cliff/terrace overlays applied to your heightmap.
This is demonstrated below, where where I've made terrain with cliffs and terraces settings from 0% up to 100%:
| Cliffs and terraces | Heightfield | 3D render |
|---|---|---|
| 0% (left, none) |  |  |
| 25% |  |  |
| 50% (centre, default) |  |  |
| 75% |  |  |
| 100% (right, many) |  |  |