Another way to accomplish this that might be a little more versatile- Make a copy like Seth said, then open the copied master shape, add guide line where you want the connection points (assuming multiple for more then one piece in a single shelf will be beneficial), select the copied shape, THEN--use the connection point tool (on the drop-down menu of the connector tool), (you have to hold down the "Ctrl" button) and add as many as you need....No shapesheet, no code, done.