• The Period Start date entry field allows you to enter the excludable period start date. When the dialog box is opened, this field is populated with the excludable period start date for the selected record. If excludable period is not set, the field is populated with the storm start date.

• The storm start date reset button resets the Period Start field to the storm start date.

• The Period End date entry field allows you to enter the excludable period end date. When the dialog box is opened, this field is populated with the excludable period end date for the selected record. If the excludable period is not set, the field is populated with the storm end date.

• The storm end date button resets the Period End field to the storm end date.

• The Comment text area allows you to enter an optional comment for the excludable period.

• The Set button sets the excludable period for the selected storm record and all the records in the child control zones for the same storm. The dialog box closes when this button is clicked.

• The Clear button clears the excludable period for the selected storm record and all the records in the child control zones for the same storm. The dialog box closes when this button is clicked and any data entered in the dialog box is discarded.

• The Help... button opens the help page for this dialog box.

• The Cancel button closes the dialog box without making any changes.