What happens to the replace signer functionality?

We seem to have lost the ability to have our own folks replace the signer once the agreement has already been sent. THis functionality has been available for us, but now seems gone. Anybody knows about this or can help me understand if there is now a new option/functionality for this request?

https://s3.amazonaws.com/uploads.hipchat.com/255217/1751229/BH0iZu924ewbok7/Screen%20Shot%202015-12-15%20at%2010.59.16%2…