Hi Daniel L,
Thank you for sharing your project plan with us. It should be possible to achieve it with Sitefinity, unfortunately for now permissions per category are not implemented. This functionality is included in our TO DO list and will be introduced in one of the future releases. For the time being, you could override the content providers in order to customize them. For instance, you can extend the default generic content provider in order to return only content for a given category, based on the current user information.
About your request for pages, yes, it is possible to customize the navigation controls in order to show only the needed pages (see this KB article
). Also, in the administration only users that have "view" permissions for a given page can see it in the tree view, so moderators from one school will see only the pages they can manage.
As for your other request for categories of libraries, by default they are turned off because this functionality further complicates the logic. However it is possible to enable categories for the "Images and Documents" module. We are currently preparing a KB article about this and in a few days it will be available here:
If you have any other questions, please feel free to contact us again.
the Telerik team