<record id="view_activity_example_form" model="ir.ui.view"> <field name="name">activity.example.form</field> <field name="model">activity.example</field> <field name="arch" type="xml"> <form string="Study roadmap record"> <sheet> <group> <field name="name"></field> </group> </sheet> <div class="oe_chatter"> <field name="message_ids" widget="mail_thread"></field> <field name="activity_ids" widget="mail_activity"></field> </div> </form> </field> </record>