Way to not share portions?

Is there a way to not "publicly" share a tab (like Movies) so that they won't show up if my link is viewed? If not, it would be nice to have a checkbox option within each tab, like imdb does with their My Movies section. Defaulting to shared is fine, but it would be nice to be able to not show everything.

Another option, that would be helpful would be to not share based off of MPAA ratings. (Don't show higher than...)

There is no way at the moment, but I may add these features in the future like friends only or private.