Possibilyty of nested playlists in vlc

[Ashark]

I am wondering is there a way to create single file nested (included) playlists in vlc.
Lets assume I need to create a playlist for some video tutorial course. There are many chapters and many lessons inside of each chapter. I want to fold and unfold chapters quickly to simplify access to specific lessons.
So I want it to look this way:

- Chapter 1 - Introduction
├ Lesson 1.1 - Who will teach you
└ Lesson 1.1 - What will you know after learning this course
+ Chapter 2 - Application interface
- Chapter 3 - Advanced techniques
├ Lesson 3.1 - Using shortcuts
└ Lesson 3.2 - Usefull tips
+ Chapter 4 - Final advises

I have looked out for playlist formats that support nesting, but did not found anything usefull except xspf.

As a workaround for now I create several files: chapter list file (level 1) and lessons in chapter files (level 2). In level 1 file I include level 2 files as items. It works, but not such convinient, because of several files and because I cannot fold/unfold needed chapter. It looks like this:

Lesson 1.1 - Who will teach you
Lesson 1.1 - What will you know after this course
Lesson 3.1 - Using shortcuts
Lesson 3.2 - Usefull tips

In XSPF/#Example_of_XSPF_with_VLC_extensions it is said that xspf can do exactly what I want (nesting nodes), but for some reason, it does not work for me. I use version 3.0.1

Can you please tell if nested playlists are possible to do in vlc?
Possibly related links:
https://mailman.videolan.org/pipermail/ ... 36382.html
https://www.videolan.org/developers/vlc ... ml#details

[Jean-Baptiste Kempf]

I don't thinks there is a good playlist format for this, unfortunately.

[chichikov]

I don't thinks there is a good playlist format for this, unfortunately.

There is:
https://forum.videolan.org/viewtopic.php?f=7&t=161551

[CO_Windler]

You can link a playlist as a playlist entry (as URL or inside the same directory). I did this to select low-res streaming formats of TV stations.