Mobile Manager was updated today.
Features
There is a new restriction under Policies > Restrictions called Allow Windows store. This new restriction has two options: Allow public and private store and Allow private store only.
When set to Allow private store only, only your school’s private Windows Store will be accessible through the Windows Store to your users.
When set o Allow public and private store, your users will be able to access both your private Windows Store as well as the public Windows Store.
Note: This feature is only available to Windows 10 Educational and Enterprise devices. This feature will not work on Windows Home or Pro devices.