Ok, i see the problem now. Smoothen may be an option. Or as i said in the first time, do it by hand in the terrain editor with erosion. I can't see another option really. I rhink in fact one of the things here as well is, that those datas are rasterized anyway. And now i am at the same point you are probably. The intension is to load the datas into a modeling program like Cinema 4D, Amapi etc and smooth it there, to give it back to Vue as a 3DS file for example. But you will run into other problems when you try to do something like this, i am sure.

One day your ship comes in - but you're at the airport.