Edit subtitle/ title

[ebenezer103]

How do I edit my subtitle?
` let appearance = SCLAlertView.SCLAppearance(
kTitleFont: UIFont(name: "HelveticaNeue", size: 0)!,
kTextFont: UIFont(name: "HelveticaNeue", size: 13)!,
kButtonFont: UIFont(name: "HelveticaNeue-Bold", size: 14)!,
showCloseButton: false,
shouldAutoDismiss: false
)

    let alert = SCLAlertView(appearance: appearance)
    
    // Add a text field
    //let alert = SCLAlertView()
    let txt = alert.addTextView()
    let contactPerson = alert.addTextField("Contact person")
    
    alert.addButton("Done") {
        let characterset = CharacterSet(charactersIn: "@!?.£%abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 \n")
        
        if (txt.text.rangeOfCharacter(from: characterset.inverted) != nil || contactPerson.text!.rangeOfCharacter(from: characterset.inverted) != nil) {
            //print("string contains special characters")
            txt.resignFirstResponder()
            contactPerson.resignFirstResponder()
            alert.shake()
            print("This is when it has special chars", txt.text, contactPerson.text)
        } else {
            print("This is when it doesnt have special chars", txt.text, contactPerson.text)
            orgMoreInfo = "\(txt.text!)"
            orgContactPerson = "\(contactPerson.text!)"
            print("Information: \(txt.text!)")
            print("Contact Person: \(contactPerson.text!)")
            alert.hideView()
        }
    }
    
    let customColor = UIColor(red: 112.0/255, green: 23.0/255, blue: 43.0/255, alpha: 1.0)
    
    _ = alert.showEdit("", subTitle: "Please add more details ", colorStyle: customColor.colorAsUInt)`

This is what I'm using, I want to edit the subtitle when it has special characters.