Since a lot of us are going to use Control Rig to Animate in Unreal, there is something that is much needed to create animations, which is Image Planes. Let’s see how we can create it and use them to Animate inside UE4 with Control Rig.
https://dev.epicgames.com/community/learning/tutorials/EbLe/use-image-plane-to-animate-in-unreal-with-control-rig