Allows a reminder to be edited or created. Block Configuration Header Template This is the template used to display important action-related UI. Unless you have a proficient understanding of data bindings and XAML, you should only really make styling tweaks in here. Save Navigation Action The navigation action to perform when the save button is pressed. Page Parameters This block looks for the following page parameters (query string). KeyTypeDescription ReminderGuidGuidThe Guid of the existing reminder you wish to edit. EntityTypeGuidGuidThe Guid of the Entity Type of the Reminder you're creating. EntityGuidGuidThe Guid of the entity of the Reminder you're creating.