If source materials with multiple streams and tracks is available (e.g. presenter/source and presentation/source), a producer might chose that he does not want to publish all streams of all tracks.
Use Case Examples:
A user has recorded both the presenter and the presentation. For whatever reason, however, he does not want the presenter video to be published but rather just presentation + audio of presenter video.
A user has recorded both the presenter and the presentation. Both contain an audio track, but the user wants only the audio tracks of the presenter video to be rendered.
We envision an additional tab "Tracks" in the Video Editor that visualizes the available source tracks and their streams. As default, all tracks are selected. The user can de-select tracks. Information about de-selected tracks will be stored per event basis and can be used by workflows to ignore tracks respectively streams.