View file Web Template Ktpl/package/system/controllers/ktpl/hooks/comment_systems.php

<?php

class onKtplCommentSystems extends cmsAction {

	public function run($target_controller=null){

        if(empty($this->options['comments_tab_title'])) return false;

        return array(
            'name'  => 'ktpl',
            'title' => $this->options['comments_tab_title'],
            'html'  => $this->options['comments_tab_html']
        );

    }

}