...
The Timeline default is OFF, which allows administrators to update the timeline before making it visible to participants. Custom milestones can be added individually to the list. From the Timeline tool, administrators can choose which milestones to add, others can be deleted.
...
Milestones can also be generated from within an engagement tool such as Event, Poll, and new Discussion. The radio button can be selected to create the Milestones in the Timeline list.
...
Once in the list, Milestones can be edited and made visible on the timeline. A simple word process editor toolbar allows for simple formatting and the addition of links to direct people to additional information related to the milestone (such as Event details).
Participant users can view the Timeline, if activated, on the main Topic page in the “Keep Up to Date” section, directly below the Overview. Past, Current and Future milestone entries can be easily identified by unique iconography which include:
...
As time progresses, the individual milestones will be activated to reflect progress of the project.