[!NOTE] Animations must contain root motion to extract curve data from

Open Content Browser ➜ Select all Turn In Place Animations ➜ Right Click ➜ Animation Modifier(s) ➜ Add Modifiers ➜ TurnInPlaceModifier ➜ Apply

You should now see curves on the animations that represent the turn itself ( RemainingTurnYaw ) and the weight ( TurnYawWeight )

Enable Force Root Lock on the Animations.

Assign Uniform Indexable curve compression and compress the animations.

That's it! Don't forget to assign them to your AnimSet.