Hello, I am working with the WebEx API to automate the creation of training sessions. The problem I am running into is I cannot seem to enable the registration of an attendee to be cancelled. In WebEx, when you create a training session, you can select a radio button under the Registration section that allows attendees to cancel their registration a certain amount of time before the session starts. What is the equivalent section in the XML call that would allow me to enable this and set that time? Any information would be greatly appreciated. Thank you.