How to edit or delete members in a group
To edit a member or guardian, go to the group > Members and press the three dots next to the members name and Edit.
To delete a member, go to to the group > Members and press the three dots next to the members name and Delete. If you do this in the main group, the member will be removed from all subgroups as well as from the attendance history. If you remove someone from a sub group they will still be member in the main group.
(It's only the administrator/s of the group that has permission to make these changes)