I am trying to add a balloon to a stacked balloon set, but cannot see the part in the view. So I figured I could use 3D Drawing View mode, rotate the view and select the edge of the component. Apparently, this does not work. After I click the check mark there is no balloon added to the stack. I've even tried clicking the check for the balloon stack in the property manager before exiting 3D Drawing View mode. Is 3D Drawing View mode just for selecting depths for section views?