Facebook - shareDialog

Hi, 

This works to post a link to the users timeline

        local params = {            app\_id = C.fbAppID,            name = "NAME",            description = "DESCRIPTION",            link = "http://www.google.com",        }  facebook.showDialog("feed", params)

But I want to use this sharing dialog to publish “stories” as per the new FB recommendations. Does Corona support this? I have tried replacing “feed” with “share” but it did not work.

thx.