hello,
I make this feature request in the follow up of different UI improvements.
proposal: Currently there is a undo/redo on the renderviewer for the camera. it would be great if instead of being only camera, it would undo/redo every modification on the renderviewer. such as hide/show a object of the pipeline, and ideally (i think this would be more complex to do) things like changing opacity/colorBy, representation (surface/surface with edges/etc).