[Cin] Multicam video output?

Given all the performane issues involved with multi track editing in Cinelerra, where every track is effectively rendered anyway. Is there any existing option to get a video track output into a separate viewer / compositor? Read: give me a window that only shows what is on this track. I am aware that <https://cinelerra-gg.org/download/CinelerraGG_Manual/Multi_Camera_Mixer.html> exists, but I am actually looking for just 'the track output' and not resource based interaction involved with mixers. Furthermore it might be a nice addition to get the multiview mode that OBS has to direct the program or multiview to a separate screen. -- Stefan