Mixing Natural/Artific Cliffs

[mxlUberlord]

It would make my map way better looking if i was able to mix Natural and Mechanical kind of cliffs. Right next to each other or joined by a ramp, like it'sa done in Blistering Sands.
I can't simply do it the way that I place regular cliffs, they sort of push each other away.
And even in Blistering Sands there is a black glitched spot where the cliffs touch wich they covered with a tower.
Any ideas how that could be accomplished?

 

[Kalekin]

In your terrain module, along the top menu, go to Tools -> Brush -> Allow Cliff Merging. You can also toggle this ability using the hotkey Shift+I.