extjs 4 - how to add items into panel header?

Question

I want to add Ext.button.Split into panel's header instead of title. It must be something like switcher of a panel's content and title of the same panel together. Is there any option in extjs 4 to do that? Or is there better solution instead of Split button? Unfortunately, switcher in panel header is the key requirement, so it must be placed there.

Answer 1

Below works for me ExtJs 4.2.2

{
            xtype: 'panel',
            ......

            header: {
                titlePosition: 0,
                items: [ 
                    {
                        xtype: 'splitbutton',

                    }
                ]
            }
}