How to choose to which group new content will be visible? I have a content type: Event. I put instances of Event inside the Calendar(everything works great). I also have Organic Groups installed and set up(I have a group called: employees).

Now, the problem is that when I create an Event I can't find dropdown list where I can choose to whom this content will be visible(to which group).

How to make it show up?

This is Drupal 7.
One have to add a field to content type: og_group_ref.