flectra/addons/stock/views/res_partner_views.xml

<?xml version="1.0" encoding="utf-8"?>
<flectra>
  <data>
    <!--
    Partners Extension
  -->

    <record id="view_partner_stock_form" model="ir.ui.view">
        <field name="name">res.partner.stock.property.form.inherit</field>
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="mail.res_partner_view_form_inherit_mail"/>
        <field name="arch" type="xml">
            <xpath expr="//group[@name='container_row_2']" position="after">
                <group name="container_row_stock" groups="base.group_no_one">
                    <group string="Warehouse" name="warehouse">
                        <field name="property_stock_customer" domain="[('usage','=','customer')]"/>
                        <field name="property_stock_supplier" domain="[('usage','=','supplier')]"/>
                    </group>
                </group>
            </xpath>
        </field>
    </record>

    <record id="view_partner_stock_warnings_form" model="ir.ui.view">
        <field name="name">res.partner.stock.warning</field>
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="base.view_partner_form"/>
        <field name="arch" type="xml">
            <page name="internal_notes" position="inside">
                <group colspan="2" col="2" groups="stock.group_warning_stock">
                    <separator string="Warning on the Picking" colspan="4"/>
                    <field name="picking_warn" nolabel="1" />
                    <field name="picking_warn_msg" colspan="3" nolabel="1" 
                            attrs="{'required':[('picking_warn','!=','no-message')],'readonly':[('picking_warn','=','no-message')]}"/>
                </group>
            </page>
        </field>
    </record>

  </data>
</flectra>