Reschedule a crystal report

Hi,

The users in my company scheduled our crystal reports for daily, weekly, monthly, yearly for many different purposes. When I add a new parameter to a report existing schedules do not see the new paramater and it is not possible to update a schedule. We have to kill all schedules related that report and create everything from begining. I wonder to know if it is destiny or are there any way to get rid of to recreate all schedules?

Thanks.