Issue: Master settings for permissions

Please add master settings for permissions per permission category. Like in xenforo permissions we need to be able set all permissions in one permission category with one click. For example: if I want to deny all 'General Moderator permissions' for a usergroup in XenForo, then I simply need to click the 'never' setting at the top of this permission category and its done. In VW I need to go to an endless number of permissions(17 pagefolds on a 26" monitor) and tick them all for every usergroup. I have 30 usergroups so its a monks task. This is extremely unfriendly.