Quick Slugs is a plugin that helps you edit, update posts/pages slugs quickly.
For more details, including installation and usage instruction, please visit my page:
http://hieudt.info/wp-plugins/quick-slugs/

Quick Slugs

alexhal

Allows Buddypress group Mods to send email to all group members from group admin/manage section. 
To enable E-mail members for mods simply put the code given below in your bp-groups-members-mail.php file in the end from wp-admin-> plugins-> editor :
<pre><code>add_filter('gmm_enable_for_mods','gmm_enabled_for_mods');
function gmm_enabled_for_mods(){
 return true;
}
</code></pre>
By default this “E-Mail Members” section is available to mods and admin . 
To change it a filter is available and you can change the access like this : 
To restrict this option to admins only 
 add_filter(‘bp_gmm_auhority’,function(){ 
 return ‘admin’; 
 });

Group Members Mail Plugin

I've done a quick test and it worked with no problems for unformatted email

Does what it says on the tin!

Allows Buddypress group Mods to send email to all group members .

Quick Slugs vs Group Members Mail Plugin