On Fri Oct 28 02:35:53 CEST 2022, Andrew Randrianasulu wrote:

Recorded with Cin-GG :-)

https://youtu.be/7pXG5cnjckQ
5min or so ....

I put in an extract of section 20.5 of the CinCV manual here:
http://cinelerra-cv.wikidot.com/cincv-manual-en:rendering-files
Most of the time you will want to bring in the rendered output and fine tune the timing on the timeline. Also some file formats like MPEG can not be direct copied. Because of this, the jobs are left in individual files.

You can load these by creating a new track and specifying concatenate to existing tracks in the load dialog. Files which support direct copy can be concatenated into a single file by rendering to the same file format with renderfarm disabled. Also to get direct copy, the track dimensions, output dimensions, and asset dimensions must be equal.

MPEG files or files which do not support direct copy have to be concatenated with a command line utility. MPEG files can be concatenated with cat.

By reading the parallell email thread "[Cin] fileexr/fileppm direct copy support", I wonder if this isn't equivalent to some other NLE's "Smart Rendering" or "by-pass re-encode/compression when possible"?  If so it would be fine to get this dealed with in the CinGG manual ....?
https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=157600
https://www.kevinmonahan.net/?p=88

And maybe also another CinGG theme "HDV on a Blu-ray without re-encode" as discussed earlier, is related and needs some manual update? 
https://cinelerra-gg.org/download/CinelerraGG_Manual/HDV_on_Blu_ray_Disc_Without.html
https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg03520.html