     
     var delegate: DetailViewControllerDelegate? = nil
     
+    // Default license plate number to use
     var licensePlateNumber: String? = nil {
         didSet {
             self.updateParkButton()

            self.licensePlateLabel?.text = self.licensePlateNumber ?? "-"
        }
    }
    
    var selectedZone: Zone? = nil {
        didSet {

        // Make sure to pass along the current value to the editor
        if segue.identifier == "changeLicensePlateNumber", let licenseVC = segue.destination as? CarLicenseViewController {
            licenseVC.licensePlateNumber = self.licensePlateNumber
            licenseVC.shortcutLicensePlateNumbers = self.previousLicensePlateNumbers ?? []
        }
    }
    
