Multiple default Scenes for workspaces (video sequencer)

Wany default Scene.1Final for video sequencer where building movie from Scene.2 , Scene.3 , etc. On Scene.2, Scene.3 I have some parts of animations but when swithing betwen Scene.2, Scene.3, and the final Scene.1Final changes are apiled to all workspaces and the video sequencer. Due that want set some scene as default to workspace eg. like sequencer to prevent this switching and idle work to restore right scene. It's related with feature request: Splited workspace with own scenes and layers?

blenderartists.org/t/multiple-default-scenes/445007