Bug 64760 add SINGLE/MULTI radios to ControlExample - Dialog tab - File Dialog Styles
should probably add a horizontal separator below the SWT.OPEN radio, then the SINGLE and MULTI radios below
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/DialogTab.java
saveButton = new Button (fileDialogStyleGroup, SWT.RADIO);
		saveButton.setText ("SWT.SAVE");
		openButton = new Button(fileDialogStyleGroup, SWT.RADIO);
		openButton.setText("SWT.OPEN");
	
		
		if (RTL_SUPPORT_ENABLE) {
			createOrientationGroup();
		}
		
		
		dialogCombo.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				dialogSelected (event);
			};
		});
		createButton.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				createButtonSelected (event);
			};
		});
		SelectionListener buttonStyleListener = new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				buttonStyleSelected (event);
			};
		};
		okButton.addSelectionListener (buttonStyleListener);
		cancelButton.addSelectionListener (buttonStyleListener);
		yesButton.addSelectionListener (buttonStyleListener);