<tabbox height="100%">

    <tabs>

      <tab label="Tab 1" closable="true" />

      <tab label="Tab 2" closable="true" />

      <tab label="Tab 3" closable="true" />

      <tab label="Tab 4" closable="true" />

      <tab label="Tab 5" closable="true" />

    </tabs>

    <toolbar width="20%" overflowPopup="true" align="end" >

      <toolbarbutton iconSclass="z-icon-plus-square" />

      <toolbarbutton iconSclass="z-icon-pencil" />

      <toolbarbutton iconSclass="z-icon-copy" />

      <toolbarbutton iconSclass="z-icon-trash" />

      <separator orient="vertical" bar="true" />

      <toolbarbutton iconSclass="z-icon-refresh" />

      <toolbarbutton iconSclass="z-icon-download" />

    </toolbar>

  </tabbox>

</window>