How does one copy and paste large areas of land quickly? I have been using the Block.setType() method to copy and paste land, block-by-block, but this is too slow and the server often crashes. I'm hoping to copy a 800x256x800 (x,y,z) block of land and paste it in an arbitrary location. No, I'm not going to use MCedit or some third-party plugin (WorldEdit, etc.) to do this.