server-tools/users_ldap_populate/view/populate_wizard.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <record model="ir.ui.view" id="populate_wizard_view">
            <field name="name">Add populate button to ldap view</field>
            <field name="model">res.company.ldap.populate_wizard</field>
            <field name="arch" type="xml">
                <form string="Add populate button to ldap view">
                    <group>
                       <field name="users_created"/>
                       <button icon="gtk-ok" string="OK" special="cancel"/>
                    </group>
                </form>
            </field>
        </record>
    </data>
</openerp>