Are you trying to create a rotation like a starship? If so, I guess you can just try using nodes like Add Local Rotation. “Yaw” (Delta Rotation Z) can be used to locally rotate the camera left/right, “Pitch” (Delta Rotation Y) can be used to locally rotate the camera up/down. You can also use “Roll” (Delta Rotation X) to rotate around the longitudinal axis. I don’t think you need quaternions at all with this node.