Combine animation in sequencer

Is there a way to blend two animations per bone directly in sequencer?

When both the animations are overlapping I want to do additive animation (like layered blend per bone node), but here it averages all the parameters between the two animations.

I want the Idle anim to stay intact and add face animation(which are as blendshapes) on top of it, directly in sequencer.

Thankyou

Angrypose - made with blendshapes

Idle Anim

When both are overlapping in the timeline

Hi, Have you found an answer to this? I’m currently looking for how to do this as well. (layering animation sequences additively in the sequencer rather than as a mixture of two absolutes)

Thanks!