private void _menuBarsInfo_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
 {
     if (e.PropertyName == "Tracking")
     {
         if (_trackingTarget != null)
         {
             _trackingTarget.TrackingTarget = MenuBarsBaseInfo.Instance.Tracking && SelectedTrack != null?SelectedTrack.GetTarget() : null;
         }
     }
     else if (e.PropertyName == "ClearCache")
     {
         MenuBarsBaseInfo.Instance.LockAll = false;
         SelectedTrack = null;
     }
 }