Retrieve appointments on demand?

I'm looking to use the Essential Schedule for ASP.NET MVC to display a large number of appointments.

Since the control posts back to the server every time you change the current date or view, it should be quite simple to only bind the appointments for the currently visible dates.

Unfortunately, all of the documentation and samples only show the code to bind the *entire* list of appointments on every request. The "Params" class doesn't appear to have any properties relating to the currently visible date range.

Please tell me I'm missing something, and that it is possible to load the appointments on demand. If it's not, this control is practically useless!