Thanks for the post. To do this please follow the steps below:
* Go to the Reports and Templates section of ClinicOffice
* Open the Appointment List report
* Enter the date of the appointments in the Start field
* Double click on the Other Search Fields in order to display the additional search fields
* Set the App Status to Cancelled
* Press Ok
* To the right hand side of the report is the Grid Options. Just under the Layouts click the By Staff.
This will display all appointments that have been cancelled for a set time and being grouped by staff.