Hi, First of all I had a new parameter to the product. Then I need that new parameter in Sales Order Lines for each product in the sales order.
I've tried to add but I had some problems regarding to being inheriting a view from sales.order and adding a parameter from products.
I've done this:
<record id="view_order_form_inherit" model="ir.ui.view">
  <field name="name">sale.order.form.inherit</field>
  <field name="model">sale.order</field>
  <field name="inherit_id" ref="sale.view_order_form"/>
  <field name="arch" type="xml">
     <xpath expr="/form/sheet/notebook/page/field[@name='order_line']/tree/field[@name='price_unit']" position="before">
         <field name="new_field_from_product"/> 
     </xpath>
  </field>
</record>
Thanks, sorry my English.
