Inviting people in to see your timeline is just like inviting a person into the event.
When inviting them, you can set the user's permissions to control what they can and cannot do with regards to viewing and editing the event.
First click Vendor (or Planner, Venue, Entourage, Host) then search for the person you'd like to invite. If their information isn't in our system you can click “invite” and invite them into AllSeated.