How to link identical GTK::UIManager XML menus?

My GTK application has the following UIManager XML. Is there a way to link those menus in the XML, so that I do not have to repeat myself?

<ui>
    <menubar name="MenuBar">
        <menu action="Options">
            <menuitem action="Item0"/>
            <menuitem action="Item1"/>
        </menu>
    &开发者_JAVA百科lt;/menubar>
    <popup name="ContextMenu">
        <menu action="Options">
            <menuitem action="Item0"/>
            <menuitem action="Item1"/>
        </menu>
    </popup>
</ui>

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You can remove the repeated parts into a separate file, then use entities or XInclude to include them.