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The enhancement here would be to add a fourth option type: Open Managed. The conditions for this group are that students are free to join or leave, but creation of teams is restricted to course staff only.
Technical approach
For the new team type to work the following changes are necessary:
Add a new option to the course-authoring MFE for this new team type with the corresponding descriptions:
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Allow instructors to create Open Managed teams, and block students from doing so:
Allow students to see other Open Managed teams, similar to Open teams:
Allow students to join Open Managed teams:
Allow students to leave Open Managed teams:
Detailed technical changes
The necessary changes have been explored in the following PRs:
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