Need to have the ability to edit volunteer hours for a shift after the event has ended to ensure proper recording and reporting of volunteer time. For example, if a shift has been setup for a 2-hour time block but it ends up only taking 1-hour for the activity, each registered participant receives an over-reported number of volunteered hours. A system admin should be able to go in and edit the default hours for the shift to correct total shift time volunteered without having to remove participants and reestablish the event.