Aside from the prototype apparently making Figma start breathing hard, I think I'm pretty happy with this interaction. Basically, even though each group level shares the same properties, I thought the interface needed to help the user access and differentiate them from each other. So the District settings span the viewport width, Schools get listed into a sticky side nav, and groups within those schools can be opened in place to display the staff and students in that group without the user having to pogo-stick in and out of admin pages.