Segment builder: how to invite/ get access to a segment

As an author (or administrator) you can invite other users to a segment. Click on the invite icon within the Segments tab and choose users from the drop-down list. 

Get access to a segment

As a user, you may see segments in the Segment tabs that you have no access to. They will be listed under the Others filter in the Segments tab. Get access to those segments by contacting their authors.