I am currently making this, should be released soon.I also recommend getting this: Orb Shifting Corrector - DownloadEdit: Released. http://forum.blockland.us/index.php?topic=256963.0
Combine those together, and add the ability to somehow hammer/wrench/print/duplicate/wand in ghost mode and we could pretty much have a official secondary build mode. Which would be so much better for everything imaginable.