partner-contact/partner_sector/views/sale_config_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <record id="view_sale_config_settings" model="ir.ui.view">
            <field name="name">partner sector settings</field>
            <field name="model">sale.config.settings</field>
            <field name="inherit_id" ref="base_setup.view_sale_config_settings"/>
            <field name="arch" type="xml">
                <div id="main" position="inside">
                    <group name="partner_sector" string="Partner Sector">
                        <label for="id" string="Sector for individuals"/>
                        <div name="group_use_partner_sector_for_person">
                            <field name="group_use_partner_sector_for_person" class="oe_inline"/>
                            <label for="group_use_partner_sector_for_person"/>
                        </div>
                    </group>
                </div>
            </field>
        </record>
    </data>
</openerp>