This tutorial covers the process of adding a new Skeleton to a character, or taking a character with an illegal skeleton and replacing it. You can then animate the character in sequencer or add a control rig for more.. control. Pt 2 coming which will cover adding a modular Control Rig, simplifying the process of puppeteering your creatures. For more check out my YT Channel https://www.youtube.com/@edtcg
https://dev.epicgames.com/community/learning/tutorials/q305/unreal-engine-fab-replacing-or-adding-a-new-skeleton-to-a-humanoid-character