To add the "Archive blog posts" section you need to choose a two columns structure for your blog or you need to split the blog page into columns. Find out how to do it in "Split page into columns".
Once you split the blog page into columns, set the "Archive blog posts" section as it follows:
1. Click on the "Add element" link in one of the columns. These types of sections are most often placed in the right column.
2. The window with all the elements will be opened. Click on the third tab - "Blog and news" and then select the "Blog archive" element. The blog archive section will appear on your page and it will automatically display all the blog posts organized by the month/year of publication.
3. If you want to add a title above the section, such as "Archive", then you need to add the title element by clicking the links "Add element -> Title".