product_set_line.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <record id="product_set_line_computer_1" model="product.set.line">
        <field name="product_set_id" ref="product_set_i5_computer" />
        <field name="product_id" ref="product.product_product_5" />
        <field name="quantity">1</field>
        <field name="sequence">30</field>
    </record>
    <record id="product_set_line_computer_3" model="product.set.line">
        <field name="product_set_id" ref="product_set_i5_computer" />
        <field name="product_id" ref="product.product_product_22" />
        <field name="quantity">1</field>
        <field name="sequence">50</field>
    </record>
    <record id="product_set_line_computer_4" model="product.set.line">
        <field name="product_set_id" ref="product_set_i5_computer" />
        <field name="product_id" ref="product.product_product_13" />
        <field name="quantity">2</field>
        <field name="sequence">20</field>
    </record>
    <record id="product_set_line_services_1" model="product.set.line">
        <field name="product_set_id" ref="product_set_services" />
        <field name="product_id" ref="product.product_product_2" />
        <field name="quantity">1</field>
    </record>
    <record id="product_set_line_services_2" model="product.set.line">
        <field name="product_set_id" ref="product_set_services" />
        <field name="product_id" ref="product.product_product_1" />
        <field name="quantity">1</field>
    </record>
    <record id="product_set_line_services_3" model="product.set.line">
        <field name="product_set_id" ref="product_set_services" />
        <field name="display_type">line_section</field>
        <field name="name">Section</field>
    </record>
</odoo>