The 2 new Pieces should work for North, South and East. Their elevation is just pre-set for East. I even think the 2 Pieces can be used interchangeably by adjusting the elevation/rotation as needed. I just made 2 Pieces instead of 1 as a visual aid to help remind which passage is the lower (darker icon is lower room). Attached is an example with the elevations needed (hopefully I got it right 
) Pieces are at 0 elevation unless otherwise stated.
) Pieces are at 0 elevation unless otherwise stated.