Pavel,
Actually, that is not true. All settings are NOT in the blog category menu or in the standard Joomla article modules.
As you can see in this image:
https://imgur.com/a/1gx10Uh
...the blog section of the Helix framework determines several key settings, including:
- Switching on and off related articles
- The heading text
- How many articles to display
- If the articles will be shown as a list or with thumbnails
The solution you proposed didn't work by the way. The related articles section in the blog category are still showing the oldest articles. In the video category, it is still showing the newest ones.
The Helix Framework manages things differently than other frameworks. I tried to figure it out by myself first and I couldn't, that is why I was asking a question.
I was very polite and friendly, so I didn't appreciate your condescending tone ("This is general knowledge of Joomla").