I'm trying to mod existing maps and it proves impossible, as I can't make the terrain larger or add to it. For example, I am trying to build some stuff on the smaller backdrop islands of Italy, but I can't because they are objects. I wanted to place some terrain underneath them and match it to their shape, then delete the object and start building, but I tried and tried and found no answers, nor a way to do it myself. This would be an amazing tool. Please consider it! Thank you devs!