If you'd like to change to or select a supervisor as primary, you can do so by:
1. Find the apprentice in your Apprentices section and go to their page. From there, click on Supervisor and you should see their supervisors listed.
2. The current primary supervisor will be listed in grey. Select the 3 dots menu next to their name and select Make Primary. (You may also add a supervisor first and then make them primary)
3. The page will refresh and the word "Primary" will appear alongside the supervisor's name.