Exclude Posts from Private BP Groupblogs

Hi! I need a global posts feed for my site. The problem is that only logged in users should see the recent blog content --> eg. if there is a private BP group with a BP group blog, non-logged users should not see the posts in the widget. Non-logged in users could see only the blog posts from public BP groups.

EDIT: I found a partial solution: While using Multisite Privacy plugin, I can exclude blogs from the Recent post widget with privacy setting "Visitors must have a login". But now nobody can see the posts in the Recent Posts Widget. --> is it possible to set the plugin somehow follow the user rights in multisite privacy --> so a logged in user would see the posts from the blogs that she is registered to in the recent posts widget?