This feature is coming very soon in our next batch of upgrades.
There currently is not a way for you to do it through your manager admin, however I can do it manually for you. The only downside is you won't be able to choose a new template for your list after I do it. If you're happy with the current template then that shouldn't be a problem
Let me know if you want me to remove them from your list for you.
For anyone else reading this, it will soon be as simple as a couple of mouse clicks to enable, and disable ratings and comments.