Got it, if you’re using ARKit, you can add the blend shape in whatever DCC you want.
Then in AnimBP use the Modify Curve node and add the blend shape you need ( image shows the JawOpen blend shape as an example ), promote its value to a variable and make that Instance Editable and Expose to Cinematics are enabled.
You may also need to create the same variable in your BP, cast to the ABP to drive the variable you created in order for that to be visible inside Sequencer, so that you can manually set the value for that specific blend shape on top of the ARKit facial tracking.
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