Headrush accounts with the ADMIN role are able to control who can access the Warehouse as well as if those with the Advisor role can add to the Warehouse or not. These access rights and Warehouse Category management can be set via the Admin > Learning Modules > Warehouse Options page.

Yes if the respective setting— 'Warehouse Enabled for Students’ is turned on.

However, one thing to note: Students can only start a copy of a Module type the Student Role has been given access via the ADMIN > Learning Modules > Module Settings. So a module that was created with a Module type only available for Advisors, wouldn't be available for students to start from the Warehouse.