Hey Para long time no see!
Since our email discussion about ArmA, terrains and VTE, I have come light years in terms of understanding the technology. Could we go new round of discussions as so much have changed, so that we get you up to speed on terrain editing so that you don't do any overlapping or unnecessary work.
I guess we should head out to some more specific WRP editing topic (which I don't know if we have yet) hmm to discuss it through. In fact I'm opening one right now where you we can talk things through. Check out
this WrpTool -> Visitor 3 -> Satellite / Mask editing topic for more details. I'll let you know about everything needed for proper terrain editing.