@Jacek I could only find a blog block showing the recent posts,
http://i.abt.team/serhii/2026_04_15_3889660069.jpg
so it seems there isn’t a block in CS-Cart that allows to display specific blog posts.
But as a workaround, there is such a block available for pages. You can dublicate needed posts as pages, create a block,
1. http://i.abt.team/serhii/2026_04_15_1780565100.jpg
2. http://i.abt.team/serhii/2026_04_15_5303861890.jpg
3. http://i.abt.team/serhii/2026_04_15_0854756828.jpg
4. http://i.abt.team/serhii/2026_04_15_1805598160.jpg
display it in the Category banners add-on,
http://i.abt.team/serhii/2026-04-15-16_29_17.jpg
and it will look something like this (your front-end designer can customize the block design/colors/font size etc. with user-defined CSS class)
http://i.abt.team/serhii/2026_04_15_5954100809.jpg
Unfortunately, this block doesn't display blog posts, and I'm not sure if that's a bug or a feature. You can select them, but they don't show up (even on the standard Responsive theme).
http://i.abt.team/serhii/2026_04_15_1016769037.jpg
You can ask CS-Cart about this.