Standard milestones are used exclusively in the
Project System
as a source for creating milestones and other standard milestones.
You can combine different standard milestones in a milestone group. For example, you can group together all milestones that are relevant for earned value analysis.
See also:
You copy standard milestones to create milestones in activities and WBS elements. You do this in (standard) network maintenance, (standard) work breakdown structure maintenance as well as in the project planning board and structure planning.