private void MenuItem_Click_NewVolume(object sender, RoutedEventArgs e)
 {
     frmNewInput settings = new frmNewInput();
     if (settings.ShowDialog() == true)
     {
         MessageBox.Show("You have set the new volume name: " + settings.txtTitleText.Text);
     }
     this.CurrentTab.addVolumeNode_Click(sender, settings.txtTitleText.Text);
 }
 private void MenuItem_Click_NewParagraph(object sender, RoutedEventArgs e)
 {
     frmNewInput settings = new frmNewInput();
     if (settings.ShowDialog() == true)
     {
         MessageBox.Show("You have set the new paragraph name: " + settings.txtTitleText.Text);
     }
     //Paragraph paragraph = new Paragraph();
     this.CurrentTab.addParagraphNode_Click(sender, settings.txtTitleText.Text);
 }