The Modular Control Rig system in Unreal Engine 5.7 makes it easy to build animation controls for a skeletal character without creating an entire control rig from scratch. Instead, you assemble the rig using pre-built modules for the spine, legs, arms, fingers, and other body parts.
In this tutorial, you’ll learn how to create a Modular Control Rig and quickly configure it for your own character.
https://dev.epicgames.com/community/learning/tutorials/jDb5/epic-for-indies-how-to-add-a-modular-control-rig-to-a-character-in-unreal-engine-5