Filter related posts by category

Hi,

With JetPack I filter the post to include in “related post” with this code in functios.hph

function jetpackme_filter_exclude_category( $filters ) {
    $filters[] = array( 'not' =>
      array( 'term' => array( 'category.slug' => 'oportunidades' ) )
    );
    return $filters;
}
add_filter( 'jetpack_relatedposts_filter_filters', 'jetpackme_filter_exclude_category' );

I’d like to know how can I do the same with de Hueman Theme Related Posts.

Cheers,

Jorge