Editing a segment

To manage a segment, click in the segment string. You can rename a segment, create a similar users segment based on it, or grant access to this segment to another Yandex.Audience user.

You can't add your own data to an existing segment that's based on uploaded data. You can only create a new segment and replace an old segment with a new one in your Yandex.Direct and Yandex.Display ad settings.