server-tools/base_custom_info/views/res_partner_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
     Copyright 2017 Pedro M. Baeza <pedro.baeza@tecnativa.com>
     License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl). -->
<odoo>

    <record id="view_partner_form" model="ir.ui.view">
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="base.view_partner_form"/>
        <field name="arch" type="xml">
            <xpath expr="//notebook[1]">
                <page name="custom_info"
                      string="Custom Information"
                      groups="base_custom_info.group_partner">
                    <group>
                        <group>
                            <field name="custom_info_template_id"
                                   options='{"no_quick_create": True}'
                            />
                        </group>
                        <field name="custom_info_ids"
                               colspan="4"
                               nolabel="1"
                               mode="custom_info"
                        />
                    </group>
                </page>
            </xpath>
        </field>
    </record>

</odoo>