// Add a new person when the user clicks button
    newPerson.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        Person p = new Person();
        p.setOSScopeRange(Integer.valueOf("0"));
        p.setOSNameRange(Integer.valueOf("0"));
        people.add(p);
        tv.refresh();
      
      }
    });