server-tools/users_ldap_populate/views/populate_wizard.xml

<?xml version="1.0"?>
<odoo>
    <record model="ir.ui.view" id="populate_wizard_view">
        <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"/>
                    <field name="users_deactivated"/>
                    <button icon="gtk-ok" string="OK" special="cancel"/>
                </group>
            </form>
        </field>
    </record>
</odoo>