How to sort the Object{} properties?

How can I add open graph objects to the properties of a custom object in the Facebook Open Graph Console?

• In Facebook Open Graph Console, some options (like og:title)  come by default when creating new custom object;; but what if I want to add og:locality. There is no option of doing that :|

• Answer:

  If you're using the Open Graph tab of the new developer tool, you can add a custom property to an object type you own by: 1. Click "Edit" on the object type name from the Open Graph Dashboard 2. Under the Object Properties section, click "Add another Property"and set a name, type, and (optionally) a sample value. Note that you can't add custom properties to the built-in types like "book" or "game".