Can Restrict Access To 'Edit-Comments.php'

Guy's

I'm using the membership plug which is working well apart from this really annoying problem. What I want to do is grant specific members Admin rights, so they can manage the site from the frontend without giving them direct access to the Dashboard

To achieve this I'm using the URL Group feature as a negative rule with the following REGEX URL:

http://domain.com/wp-admin/.*

This blocks all access to anything with wp-admin perfectly except for 'Manage Comments' (http://domain.com/wp-admin/edit-comments.php) which goes straight to the Admin Dashboard!

How can I prevent access to http://domain.com/wp-admin/edit-comments.php ?