Facebook graph api: how to always group all your posts in one single post
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I have an application that posts news on its users' walls at times. I noticed that it created different news posts every time. However, some other applications could have their news grouped in a single post so that every time  they post a recent news, it will create a news post in the same big post, but on top of the other news, and move the big post to the top of the timeline. Any idea?