rma/crm_rma_claim_make_claim/views/crm_claim.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <record id="crm_claim_form_view_inherited" model="ir.ui.view">
            <field name="name">crm.claim.form.view.inherited</field>
            <field name="model">crm.claim</field>
            <field name="inherit_id" ref="crm_claim.crm_case_claims_form_view"/>
            <field name="arch" type="xml">
                <xpath expr="//notebook" position="inside">
                    <page string="Related Claims">
                        <group colspan="2" col="2">
                            <field name="claim_ids" nolabel="1" readonly="True"/>
                        </group>
                    </page>
                </xpath>
            </field>
        </record>
    </data>
</openerp>