Cancellation emails

Hello,

I requested the ability to put a patient in a diary without an email going to a patient. It would appear this function is now available. However if that appointment needs changing the patient still gets a cancellation email. Please could there be an option to turn off all patient notifications. Currently if the diary needs changing patients will receive a cancellation for the an apppointment they didn’t know they had. I need a way to arrange and ammend multiple phsyios sessions without any emails going to patients. Many Thanks! Caroline