In this step-by-step tutorial, I’ll guide you through the process of importing a custom Metahuman character into the Unreal sample project to take advantage of Motion Matching animations. You can then export this character to use in your own environment.
https://dev.epicgames.com/community/learning/tutorials/1wyo/unreal-engine-motion-matching-with-metahumans
That’s not it. And if all the logic is written down in the basic metahuman, then what, copy all the logic from one blueprint to another? It would be weird