I would really like a notification of my document being viewed. When I am in the admin panel I get that notification, why cant you guys extend that functionality to hit my callback url just like you do when the document is sent or signed? You should put your code on github so I can fork it 
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Hi,
Thank you for your request. The GroupDocs for Cloud Apps isn’t open source so its not possible to put it to the Github.
As for the callback - if more of our paid customers will require such functionality - we will add it to our road map.
Thank you.
It is a pretty standard feature on DocuSign. It should definitely be in on the roadmap.