To create to Filter Groups and Filter Tags, head over to your posts and edit the post where you want to add the filters.
On Scrolling down, just below the main WP editor, you’ll see a section (meta box) named Smart Content Filter. This is where you create Filter Groups and Tags. By default, the filters are disabled for any post. To enable them, first, click on the switch to enable them. Then, click on the Add Filter Group button.
This will open up a new Filter Group option. Give a name to your Filter Group and add tags. That’s it.