Recording different scenes together

This is mostly a Recorder question, but I guess this is the best place to ask.

I started using Timeline for my game's realtime cutscenes. I divided imported scenes to Unity scenes. I created a workaround system for changing scenes at the ends of Timelines (my ChangeScene command game objects get active).

The problem is, when I take Recorder rendering, it records only one scene. Of course it is possible for me to assemble all different scene videos with a video editor, but I wondered if there is a smarter option.