I am happy to report that this has been added to the EHR for our customers as of 5/29/2015. Thanks everyone for your patience as we resolved this.
You can learn more about this feature here: http://knowledgebase.practicefusion.com/knowledgebase/articles/486089-how-do-i-change-appointment-status-in-the-scheduleKathleen commented
thank you, is there any way to also do this when looking at the weekly scheduler. It makes it hard for the doctor looking at his surgical schedule when the surgeries that have been canceled still show on schedule