One way to configure Echoes teams is to manually edit the teams tree hierarchy in a graphical interface. Members can be dispatched into teams by manually selecting a team and then browsing the list of known members. This list of known members is built from data observed "in the wild" (for instance, in GitHub Pull-Requests authors).
A note on duplicated entries
There are situations where a name may appear twice (for instance if firstname.lastname@example.org has been contributing under a secondary email email@example.com) and Echoes has no way to match these two identities to a single contributor.
This may hurt the readability of your Echoes dashboards and impact your billing. We therefore recommend that some compliance efforts is undertaken to clarify these data issues, or to reach out to firstname.lastname@example.org for help.