Resources tab is where a user can see what Resources (such as PDF’s, Word Documents, Web Links etc.) are currently in the story and can add story level resources to be used to enhance items contents. 

New Story Resource 

You can add several types of resources; URL, File or Related Story. Adding a resource means making it available to the items in the story, allowing users to add that resource to a panel in the item. 

Note: Can only be added to Local or Shared items 

Saving your changes 

You must press “OK” to save the changes, any other way of leaving the data grid (clicking the cross or cancel) will result in your changes not being saved.