coauthors_qw_field_example.php

<?php
/*
Plugin Name: Coauthors Plus QW Field
Description: Example of coauthors custom Query Wrangler field
Author: Jonathan Daggerhart
Version: 1.0
*/

add_filter('qw_fields', 'coauthors_plus_qw_field');

function coauthors_plus_qw_field($fields)
{
  $fields['coauthors_post_links'] = array(
    'title' => 'Coauthor Posts Links',
    'description' => 'Outputs the co-authors display names, with links to their posts.',
    // If the coauthors plugin didn't echo the data by default we wouldn't even need this custom function,
    // we could have set the output_callback to 'coauthors_posts_links' instead.
    'output_callback' => 'get_coauthors_posts_links',
  );
  return $fields;
}

/*
 * http://vip.wordpress.com/documentation/incorporate-co-authors-plus-template-tags-into-your-theme/#available-template-tags
 */
function get_coauthors_posts_links(){
  return coauthors_posts_links(null,null,null,null,false); 
}