The section allows you to automatically add those articles which have the same blog group with a column for some additional content.
First, you need to create some blog posts from Shopify Admin > Online store > Blog post. You can follow this article.
Then you can add section to your theme. Steps: In the theme editor (Customize) > Add section > Blog post 3 > Save.
Click on Blog post 3 > ADD BLOCK > choose the block you want to add.
Col (Parent) represents for one column. In this block, you can adjust it with many options below:
Content align: You can align content to Left, Center or Right and Content align vertical center
Padding inner for many devices: Desktop, Tablet, Mobile
Background image/background color for this column
You can add Text, Button, HTML, Image (child), Space HTML, Custom label and config the style for them. You can refer to this video:
You can enter the Heading and Subheading, choose the design for the heading, also can choose text align: center.
You can show a button on the heading to redirect customers to the blog page (Only used for design 9)
Blog position, Blog post, Number of article to show
Show blog information: you can choose show/hide blog title, short content, tags, author, comment, ...
Date format: You can set date format to display (different format options display for various languages).
Content align: choose align Default or Center
IMAGE OPTIONS: You can choose image effect, image ratio, image size, image position, also items per row, and space between items blog.
Layout design: you can choose Grid, Carousel
Carousel layout: you are allowed to config loop, autoplay feature and enable Prev, next button, Page dots.
Grid layout: you can add a Load more/View more button.
Please follow this guideline to config Layout, Background, Margin/Padding for the section.