I tested adding the excerpt support to the plug-in and it works!
The code is so simple I would like to share it here. Perhaps you could even contemplate of adding it to the official plug-in code?
<?php
/********************************************************************************
* @Author: Harm Kramer - Remark Webdesign
* @Website: remark-webdesign.nl
* @Description: Add excerpt support and own length for plug-in Good Reviews
*********************************************************************************/
add_action('init', 'myown_greviews_excerpt');
add_filter('excerpt_length', 'myown_greviews_excerpt_length');
function myown_greviews_excerpt() {
add_post_type_support( 'grfwp-review', 'excerpt' );
}
function myown_greviews_excerpt_length($length) {
global $post;
if ($post->post_type == 'grfwp-review') { $length = 100; }
return $length;
}