Short Answer:
During the post creation process you can who can see a post, as well as after the post is live.
Steps:
1. Click Create Post and create a post as normal.
2. Click Next.
3. On the Post Settings page, choose Public under Access.
4. Once a Post is live:
1. Click the ellipsis (three dots) to the right of a Post’s title.
2. Click Edit Settings.
3. Change visibility to Public under Access.
