Hi-
Back in the old days when i used Form z, there was a tool called disturb surface, where you could deform the surface geometry in a random way, with a couple of parameters. I’ve a bit of searching with no luck- has anyone seen a plugin like this?
best
R
the closest I know of is Erode by Eneroth:
https://extensions.sketchup.com/en/content/eneroth-fractal-terrain-eroder