Is it possible to use a schematic as a starter for 10 in a new schematic? In particular, is there a way to use the Arduino UNO shield as the staring point for a larger schematic/PCB that will preserve the Arduino interface connections and layout? If so, how? I've tried copy and paste, but that doesn't work between tabs, and the Arduino sample won't copy at all. So can it be removed from it's frame (if I try to magnify it, it dissapears top left, and recentering reduces it back to its original size with the other frames around it) and repositioned in the centre of the screen (canvas)?