Page Template

Hi.
Thanks for this awesome plugin. I would like to update it a little and include the code in php template. do_shortcode is not what I am looking for.

I would also like to know how to customize the loop. I need to add a class to the <article> tag.

Thanks

https://wordpress.org/plugins/ajax-post-filter/