Head to WordPress Dashboard > Smart Filters > Add New. 

Complete a Filter Name and pick the desired Filter Type.

If you choose the “Checkboxes list” option, the settings as in the picture will be available.

Mind picking the “JetEngine Glossary” Data Source and completing the Select glossary field with the desired item.

For instance, look at the presented example. In this case, we take the Name/ID from the Custom Post Type settings, the posts of which we want to filter eventually.

The same steps should be taken if you want to build a Radio Filter.

Or, you are free to create a Select Filter to cover the glossary options in a drop-down menu.

Now, we will take the “Select” Filter Type as an example for the described use case.

Push the “Update” button to save the changes made to the filter.

Navigate to the WordPress Dashboard > Pages directory and open/add a new page to place the built filter on it. Pages can be either made with Gutenberg or Elementor.

Now, let’s open the Elementor-edited page.

Here, find and place one of the needed widgets onto the page: Checkboxes, Radio, or Select Filter.

Also, there is a Listing Grid widget on this page; it serves as a provider for the filter; for this, we select the “JetEngine” option in This filter for list.

Customize the page if desired and press the “Publish/Update” button.

Check the result by opening the page you have just edited. 

The Glossary items are now available for selection.

Now, pick one of the options to see if the filter is working.