有没有办法用NSSharingService包含“密件抄送”、“抄送”等字段？

import MessageUI

func sendEmail() {
    if MFMailComposeViewController.canSendMail() {
        let mailComposeViewController = MFMailComposeViewController()
        mailComposeViewController.setToRecipients(["recipient@example.com"])
        mailComposeViewController.setCcRecipients(["cc@example.com"])
        mailComposeViewController.setBccRecipients(["bcc@example.com"])
        mailComposeViewController.setSubject("Subject")
        mailComposeViewController.setMessageBody("Message body", isHTML: false)
        
        // Present the view controller
        if let viewController = UIApplication.shared.keyWindow?.rootViewController {
            viewController.present(mailComposeViewController, animated: true, completion: nil)
        }
    }
}

import MessageUI

class ViewController: NSViewController, MFMailComposeViewControllerDelegate {
    
    func sendEmail() {
        if MFMailComposeViewController.canSendMail() {
            let mailComposeViewController = MFMailComposeViewController()
            mailComposeViewController.setToRecipients(["recipient@example.com"])
            mailComposeViewController.setCcRecipients(["cc@example.com"])
            mailComposeViewController.setBccRecipients(["bcc@example.com"])
            mailComposeViewController.setSubject("Subject")
            mailComposeViewController.setMessageBody("Message body", isHTML: false)
            
            // Set the delegate
            mailComposeViewController.mailComposeDelegate = self
            
            // Present the view controller
            if let window = NSApplication.shared.keyWindow {
                window.contentViewController?.presentAsSheet(mailComposeViewController)
            }
        }
    }
    
    // MFMailComposeViewControllerDelegate method
    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
        // Handle the result
        controller.dismissViewController(self)
    }
}