How to use blendshapes with control rig

How would I go about animating my character’s face with control rig and sequencer. My character has the 52 Apple ARKit blendshapes setup and imported for facial animations, just not sure how to animate facial expressions along with control rig in the sequencer. At the moment control rig only controls the body but I’m not sure how to animate the blend shapes inside the sequencer.

I love how most questions never get answered in the official Unreal forums