gnc-sxed-window-ui.xml

<ui>
  <menubar>
    <menu name="Edit" action="EditAction">
      <menuitem name="EditCut" action="EditCutAction"/>
      <menuitem name="EditCopy" action="EditCopyAction"/>
      <menuitem name="EditPaste" action="EditPasteAction"/>
      <placeholder name="EditPlaceholder"/>
    </menu>
  
    <menu name="View" action="ViewAction">
      <placeholder name="ViewPlaceholder"/>
    </menu>

    <menu name="Actions" action="ActionsAction">
      <placeholder name="ActionsPlaceholder"/>
    </menu>
  
    <placeholder name="AdditionalMenusPlaceholder"/>
  </menubar>

  <toolbar name="DefaultToolbar">
    <placeholder name="DefaultToolbarPlaceholder"/>
    <separator name="ToolbarSep1"/>
  </toolbar>
</ui>