Chapter 14 on the Sketcher plugin is very well explained and give users the confidence to try it themselves after seeing the "map route" (this is what I saw in the Mailing List before this was released and did not know where it had come from).
This next professional Chapter 15 by RafaMar, the audio/video technician, explains how to add black bands to your video to give it a more cinematic touch. Included is usage of the "Crop and Position" plugin and, for me at least, a good basic explanation of how to use the Compositor Camera tool.
Chapter 16 from RafaMar - Animated Screen Decorations. All of his tutorial are so detailed and well explained and it is so convenient to have both the Tutorial and the Video.
Rafa's playlist is linked in the cinelerra-gg.org YouTube in Spanish at:
so it is easy to look there to see all 15 chapters he has done is such a short period of time. It is amazing how much work he has done.
Rafa Mar's Chapter 17 is on using Subtitles in CinelerraGG along with a really good tool, Gaupol, to get them in a much better format. It is hoped that as mentioned in Bug Tracker issue #282 and #475, improvements will be forthcoming.
Rafa Mar's tutorial and video on Chapter 18 - Speed Changes is at:
Rafa Mar's tutorial and video on Chapter 19 - Working with Proxies:
Rafa Mar's tutorial and video on Chapter 20 - News and Improvements:
And now for RafaMar's Chapter 21 on folders/bins. (He is like the energizer bunny and just keeps going and going with more and more videos/tutorials).
One of the people who reviewed several NLEs big complaint was about not enough videos to look up specific features so maybe over time these will help.