Convert Relative Rotation to World Rotation?

Hey guys,is there any way to convert a Relative Rotation to a World Rotation?

I need an actor to rotate specifically using setWorldRotation. The actor HAS to rotate on the yaw axis in World space. But the pitch axis HAS to move in Relative space.

I know how to do this while the Actor is moving. But lets say i freeze the objects rotation somehow and i want the Actor to snap to rotations on the pitch Axis. I cant simply use the get Relative Transform(and split the pins and get the relative rotation) and use it since the Actor’s rotation will pretty much be stuck or Frozen.

Any ideas?