Hi is there any way to entangle 2 objects such as 2 or more points, control points, sub d vertices/edges/faces etc, so that by changing one will immediately change the other(s) in an exact or perhaps, symmetrical manner?
I’d look into History. If that doesn’t work, it sounds like a job for grasshopper.
Use the _Reflect command on a SubD object.
The Symmetry command may be useful: Rhinoceros Help