Summary
The blog template showcases a grid of blog posts.
Adding simple tag filtering to a blog page
Using Paper you can update blog template to use tag based filtering. This is an easy way to surface sub-categories within a blog. For example, you may can show filters to view blogs posts with specific tags.
Create metafield definitions
Open up Settings and click Custom data.
Click Blogs
Click Add definition.
Set Name to Subtags.
Set Namespace and key to custom.subtags.
Click Select content type.
Click Single line text.
Click List of values.
Click Save.
Add data to collection metafield
Open the blog you’d like to add a tag filtering too
You'll have to navigate to Online Store > Blog posts > Then click "Manage blogs"
Scroll to the bottom Metafields area.
Enter a text value for each tag filter
There's no need to include "All" as that will be the first link within tag filtering
Each entry should match a tag that is present within your collection
Click Save.