menu.xml

<?xml version="1.0" encoding="UTF-8"?>
<menu>
    <item parent="/extras/"
          name="erp"
          icon="fa fa-sun-o"
    >
        <locale group="quiqqer/shipping" var="menu.erp.title"/>
    </item>
    <item parent="/extras/erp/"
          name="shipping"
          require="package/quiqqer/shipping/bin/backend/controls/Shipping"
          icon="fa fa-truck"
    >
        <locale group="quiqqer/shipping" var="menu.erp.shipping.title"/>
    </item>
    <item parent="/extras/erp/"
          name="shipping-rules"
          require="package/quiqqer/shipping/bin/backend/controls/ShippingRules"
          icon="fa fa-truck"
    >
        <locale group="quiqqer/shipping" var="menu.erp.shipping.rules.title"/>
    </item>

</menu>