Users want the ability to label different objects in different views. You can not in ParaView currently because labels are tied to the active selection and the active selection is tied to one particular item in the pipeline browser. We should break the dependence of labels on the selection to allow this and other use cases.

To demonstrate: open the example visualization with two clips on can.ex2. Split the view, link the cameras and show both clips in both views. Make a selection inside one clip in one view and turn on labels via the Selection Display Inspector. You can label the same selection by a different array in the other view. However you can not make a selection on the other clip to label those nodes/elements without destroying the first selection and its labels.