partner_social_fields_extends/partner_social_extends_view.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <record id="view_partner_social_extends_form" model="ir.ui.view">
            <field name="name">res.partner.social.extends</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="partner_social_fields.view_partner_social_form1"/>
            <field name="arch" type="xml">
                
                <field name="skype" position="before">
                    <group col="3" colspan="2">
                        <field name="instagram"/>
                        <button name="goto_instagram" string="Ir" type="object"/>
                        <field name="linkedin"/>
                        <button name="goto_linkedin" string="Ir" type="object"/>
                    </group> 
                </field>    
               
            </field>
        </record>
    </data>
</openerp>