private void Properties_OnClick(object sender, ExecuteRoutedEventArgs e)
        {
            var wnd = new PropertiesWindow
            {
                SelectedObject = SelectedObject.Clone(),
                IsReadOnly     = IsReadOnly
            };

            if (wnd.ShowModal(this))
            {
                SelectedObject.Load(wnd.SelectedObject.Save());
            }
        }
 public void Copy()
 {
     ClipBoard = SelectedObject.Clone <ObjectType>();
 }