Given this report definition, how can I change the file name used in the PDF so it uses names such as "SO-001.pdf".
<report
id = "report_custom_sale_order"
string = "Quotation / Order"
model = "sale.order"
report_type = "qweb-pdf"
file = "custom_saleorder.report_saleorder"
name = "custom_saleorder.report_saleorder"
paperformat = "custom_saleorder.paperformat_a4"
/>
Odoo 10.
Thanks