<?xml version="1.0"?>
<form col="6">
    <label name="notebook"/>
    <field name="notebook"/>
    <label name="product_type"/>
    <field name="product_type"/>
    <label name="matrix"/>
    <field name="matrix"/>
    <notebook colspan="6">
        <page id="lines" string="Lines">
            <field name="notebook_lines"/>
        </page>
        <page id="comments" string="Comments">
            <field name="comments" colspan="4"/>
        </page>
    </notebook>
</form>
