Botiga – Blog customization problem

Good morning, I have a problem, I can’t customize the blog page.

I would like it to show only the main categories and not the individual articles, as in the picture: https://drive.google.com/file/d/1kb0gkDgINYxUzCUmMIDr4alkfpOufiWd/view?usp=sharing

But the changes are not saved:

https://drive.google.com/file/d/1C_9CejVI8ysj7Eq6MQurrsnxiGQMW-CZ/view?usp=sharing

The page I need help with: [log in to see the link]