Bug 128317 group header and footer checkboxes
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/GroupDialog.java
GridData data = new GridData( );
		data.horizontalSpan = 2;
		repeatHeaderButton.setLayoutData( data );
	}
	/**
	 * Creates sorting and filter table area
	 * 
	 * @param parent
	 *            the parent composite
	 */
	private void createFilterSortingArea( Composite parent )
	{
		Group group = new Group( parent, SWT.NONE );
		group.setText( GROUP_DLG_GROUP_FILTER_SORTING );
		group.setLayout( new GridLayout( ) );
		group.setLayoutData( new GridData( 550, 250 ) );
		ArrayList list = new ArrayList( 1 );
		list.add( inputGroup );
		TabFolder tab = new TabFolder( group, SWT.TOP );
		tab.setLayoutData( new GridData( GridData.FILL_BOTH ) );
		
		
		/*
		TabItem bindingItem = new TabItem( tab, SWT.NONE );
		FormPage bindingPage = new DataSetColumnBindingsFormPage( tab,
				new DataSetColumnBindingsFormHandleProvider( ) );
		bindingPage.setInput( list );
		bindingItem.setText( TAB_BINDING );
		bindingItem.setControl( bindingPage );
		*/