Not sure what you mean exactly. But what I am doing is rotating the Pawn itself. Since the camera is a sub-component of the Pawn, it will follow the rotation of Pawn.
If you want the camera to overlap with the Pawn (thus being at the center), you can reduce the spring-arm length to a very small value.
The thing to note here is technically I am not meddling with the camera directly. And secondly, the Pawn is invisible (it does not have any visible component attached to it). But for debugging purposes, you can set the Arrow component to ‘Draw in game’ and see a visual representation of the pawn.