server-tools/partner_do_merge/wizard/merge_by_partner.xml

<openerp>
    <data>

        <record model="ir.ui.view" id="view_merge_parter_by_partner_wizard">
            <field name="name">view.merge.partner.by.partner.wizard</field>
            <field name="model">wizard.merge.partner.by.partner</field>
            <field name="arch" type="xml">
                 <form string="Merge Parners" version="7.0">
                    <group>
                        <field name='partner_id'/>
                        <field name='partner_ids'>
                            <tree string="Partners to Merge">
                                <field name="name"/>
                            </tree>
                        </field>
                    </group>
                    <footer>
                        <button name="merge_cb" type="object" string="Merge" class="oe_highlight"/>
                        or
                        <button name="action_skip" type="object" special="cancel" string="Cancel" class="oe_link"/>
                    </footer>
                </form>
            </field>
        </record>
        
        <act_window id="merge_parter_by_partner_wizard"
            name="Merge Partners"
            src_model="res.partner"
            res_model="wizard.merge.partner.by.partner"
            view_mode="form"
            target="new"
            key2="client_action_multi"
            />
        
        </data>
</openerp>