I had idea for the permission manager, I'm not sure if it is more of an upstream idea or can be done downstream.
Add tab in the privacy manager to that allow the user to add apps to a group to manage permissions. This would allow permissions to be set in bulk instead of per permission or per app.
I think it would be a UI feature in settings since it Doesn't change the functionality of the permission manager, just Modifies/extends the way exsiting permissions are set