 
     // MARK: - Private Method
     private func configure() {
+        // Calendar
         delegate = self
         weekdayHeaderEnabled = true
         
+        // rightBarButtonItem
+        let spacerRight = UIBarButtonItem(barButtonSystemItem: .FixedSpace, target: nil, action: nil)
+        spacerRight.width = -MalaLayout_Margin_5
+        let rightBarButtonItem = UIBarButtonItem(customView: saveButton)
+        navigationItem.rightBarButtonItems = [rightBarButtonItem, spacerRight]
+        
+        // register
         collectionView?.registerClass(ClassScheduleViewCell.self, forCellWithReuseIdentifier: ClassScheduleViewCellReuseID)
         collectionView?.registerClass(ClassScheduleViewHeader.self, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: ClassScheduleViewHeaderReuseID)
     }


public class ClassScheduleViewController: PDTSimpleCalendarViewController, PDTSimpleCalendarViewDelegate, PDTSimpleCalendarViewCellDelegate {

//    override 
    
    // MARK: - Life Cycle
    override public func viewDidLoad() {

    
    
    // MARK: - Delegate
    
    
    
    // MARK: - Event Response
    @objc private func scrollToToday() {
        scrollToDate(NSDate(), animated: true)
    }
}