I use the custom cell rendering feature on the Calendar and MultiViewCalendar controls. To improve performance, I would like to only load a few months of data at a time and load historical data as needed on request. To do that I need the calendars to fire an event when the user navigates to a different month using the navigation or header controls. I have confirmed with support that this event does not exist and to make a feature request. I have seen similar events in other React Calendar controls so I believe that others could benefit from being able to respond to these events as well.