I have a situation where I want to be able to keyframe the rotation of a point and have another point in the exact same place rotate the opposite way. So for example, if I keyframe the Parent Point to rotate from 0 to 20 degrees on the Z-Axis, the Parented Point (located in the same place as the first point) rotates automatically from 0 to -20 degrees on the Z-Axis.
Of course, I can simple copy the keyframes from the Parent Point to the Other Point and change the signs, but it would be nice to only have to keyframe the Master Parent Point and the Other Point would procedurally rotate in reverse automatically. After putting some serious thought into this, I cannot come up with a way to do this. Any ideas?