For the purposes of cutting manufacturing costs I wanted to merge two designs. So I tried creating a blank PCB document in one of the projects and copying the two designs in. But on doing this all of the net information was lost, a lot of non existent short circuit errors were flagged and the various polygons that would have been connecting parts together suddenly poured around the pads and not connecting them as before.
Is there any way to use CS to merge 2 designs? The boards are made in pairs so it's a bit silly to pay for the tooling twice.