There is currently no dedicated supervisor role in the system.
If this is something you want please let us know here:
​https://feedback.luminsports.com/p/parentsupervisor-role

Currently we have two workaround methods.

Here parents/supervisors can log into the web or mobile app for oversight on their athlete's profile.

When inviting a parent you can invite them with no roles assigned.
Then add them into the appropriate group.
With this they will receive all relevant comms sent to the group.
1 on 1 chats with the athlete can then also have the supervisor added into for oversight.