Hey @Sulleyyyyyy
Have you tried using the curves in conjunction with Blend Spaces? Those are the main way I’ve seen most done, but I do not think there is another animation editor inside the engine, most are done in outside sources like Blender, Maya, or 3DS Max. I think Adobe may also have a pretty cool tool for this, but nothing inside the engine editor.
That being said though, I found a plugin, but its got a pretty steep price tag so I can’t say I recommend it, especially since I haven’t tried it, but it seems to get the job done: Virtual Animation Tools V5 in Code Plugins - UE Marketplace
I hope this can help,
-Zen