Metahuman Animator - Combine Face and Body Animation (UE 5.3)

How to combine Face and Body Animation while preserving head rotation from the Animator face mocap. Official video is linked below
• Adjusting animation us...
Prep:
1. Export Animator Performance animation sequences - one with head rotation data, one without head rotation data
2. Have two Metahumans added to a level sequence and remove default control rigs - one is the "finished product", the other is a staging ground for extracting head rotation data.
Process
On the "finished product" Metahuman
1. Add the intended body animation to the body and bake to control rig
2. Add the animation sequence without head rotation to the face
On the "staging ground" Metahuman
1. Add the animation sequence with head rotation to the BODY - "Allow Incompatible Skeletons" should be ticked on in order to see the animation sequence. Bake to control rig
2. Scroll down and expand head_ctrl, neck_01_ctrl, and neck_02_ctrl. Copy Roll, Pitch, and Yaw keyframes contained within each (hold CTRL-SHIFT while highlighting keyframes)
Back to the "finished product" Metahuman
1. On the body, add an Additive Control Rig Layer
2. Paste keyframes to this layer
3. Bask in your glory