Like the other examples in this book, we are going to choose a very common business requirement for this example. Most companies are not going to want to use the default sales order. In fact, after working with hundreds of accounting and ERP systems, I cannot recall any system implementation that involves sales orders where the sales order wasn't customized at some point.
Using what you have learned from the previous chapters, you may wish to bring up a quotation or a sales order and have it ready to print so that you can see your changes as they happen. Any changes you make will modify both the quotation and the sales order, since they share the same QWeb template.
Odoo is quite good at allowing you to use more than one tab in your browser for most operations. I often keep one tab open with the document I want to print and...