partner-contact/partner_multi_relation_tabs/demo/res_partner_tab_demo.xml

<?xml version="1.0" encoding="UTF-8"?>
<odoo>

    <record id="tab_committee" model="res.partner.tab">
        <field name="code">committee</field>
        <field name="name">Government committee</field>
        <field name="contact_type">c</field>
        <field name="partner_category_id" ref="category_government" />
    </record>

    <record id="tab_board" model="res.partner.tab">
        <field name="code">board</field>
        <field name="name">Company executive board</field>
        <field name="contact_type">c</field>
    </record>

    <record id="tab_positions" model="res.partner.tab">
        <field name="code">positions</field>
        <field name="name">Positions held</field>
        <field name="contact_type">p</field>
        <field name="partner_category_id" ref="category_functionary" />
    </record>

</odoo>