Hello, I have Odoo 8 and I am developing a QWeb report.

This is my code where I call the report:

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <report 
            id="report_facturacion_quincenal"
            string="Detalle ventas"
            model="sale.order" 
            report_type="qweb-pdf"
            file="x_transporte.rep_facturacion_quincenal" 
            name="x_transporte.rep_facturacion_quincenal" 
        />
    </data>
</openerp> 

In the x_transporte.rep_facturacion_quincenal.xml file I have this code

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data>
<template id="report_view_facturacion_quincenal">
    <t t-call="report.external_layout">
        <div class="page">
            <div class="oe_structure"/>
            <div class="row">
                <h2>Detalle de ventas</h2>
            </div>

            <table class="table table-condensed">
                <thead>
                    <tr>
                        <th>Fecha</th>
                        <th>Documento</th>
                        <th>Detalle</th>
                    </tr>
               </thead>
               <tbody class="sale_tbody">
                    <tr t-foreach="o" t-as="l">
                        <td>...
........
</div>
</t>
</template>

<template id="rep_facturacion_quincenal">
    <t t-call="report.html_container">
        <t t-foreach="doc_ids" t-as="doc_id">
            <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'x_transporte.report_view_facturacion_quincenal')"/>
        </t>
    </t>
</template>
</data>
</openerp> 

When I select more than one sale order, and print the report, the system generates one sheet per sale order. I want to print all the sale orders in the same sheet (if the space is enough, of course). How can I do that? Thanks!