Odoo-Build/snippets/stock.report_delivery_document.header_picking.xml

<data inherit_id="stock.report_delivery_document" priority="60">

    <xpath expr="//table[@name='stock_move_table']/thead/tr/th[6]" position="after">
        <th id="th_packing" class="text-end">
            <strong>Packing</strong>
        </th>
        <th id="th_ve" class="text-end">
            <strong>VE</strong>
        </th>

    </xpath>
    <xpath expr="//table[@name='stock_move_line_table']/thead/tr/th[6]" position="after">
        <th id="th_line_packing" class="text-end">
            <strong>Packing</strong>
        </th>
        <th id="th_line_ve" class="text-end">
            <strong>VE</strong>
        </th>

    </xpath>
    <xpath expr="//table[@name='stock_backorder_table']/thead/tr/th[6]" position="after">
        <th id="th_packing" class="text-end">
            <strong>Packing</strong>
        </th>
        <th id="th_ve" class="text-end">
            <strong>VE</strong>
        </th>
    </xpath>

</data>