From our friend and Mentor: Morgan Loomis Just like @chadvernon‘s great cvShapeInverter, can now invert a shape in @AdskMaya 2016.5+ using invertShape($deformed, $corrected) If your in the UI and wanting to do this you can use the they have a “duplicate pose shape” as part of the pose editor in 2017 #rigtip
Rigging DojoTeaching the Art and Science of Character Rigging