Display the title of subcategories in blog layout

Well, another question:

How can I display the titles of subcategories in blog layout? I have set the parameters for this menu entry like in the attached file. But on frontend it shows only the parent category

It looks like:

ParentCat Name

Article 1 of category A | Article 2 of Category A | Article 1 of Category B

But I need:

ParentCatName

Name of Category A

Article 1 of Cat A | Articl 2 of Cat A

Name of Category B

Article 1 of Cat B



Thanks a lot!

Subcategory titles in Joomla are not provided.
Maybe you can override the blog view.