* @return a {@link SWTBotToolbarButton} with the specified <code>key/value</code>.
*/
@SuppressWarnings("unchecked")
public SWTBotToolbarButton toolbarButtonWithId(String key, String value, int index) {
Matcher matcher = allOf(widgetOfType(ToolItem.class), withId(key, value));
return new SWTBotToolbarButton((ToolItem) widget(matcher, index), matcher);
}