By placing the same exact things on both sides? What you can do I start off by making a base floor, and use the corners of the pieces you used as a reference, and build your structures on both sides of the board in the same spot. Best way to do so is to use nudging, and look closely at details in the base pieces designs, I'll post an example picture later.
That's what I suspected, but I was just making sure, thank you, *gives hug to FlamingArmadillo and lights on fire* "Oh ****..."
Yeah or you could use the "Grid" object. Lay this in the area your working on and phase objects into place. as a side i would love to be able to 'save' groupings of objects so i wouldnt have to build the same structure twice!!