How do I make my group private or public?
To change the privacy settings of your group, tap the settings icon in the top right corner of the group page. A menu should appear from the bottom of your screen.
Tap “Group Settings” and then “Privacy”.
Once on the Member Permission page, select Public or Private and then tap “Save” in the top right.
Public: Group appears in public search results and anyone can see the group members and posts.
Private: Group appears in public search results but only members can see the other group members and posts.
NOTE: To change the privacy settings of a group, you have to be a group admin.