Any shortcode?

If you install the plugin and enable it in the settings the top-bar should show up. There is no need for a shortcode.

If you want to display a form by shortcode, use our plugin MailChimp for WP, it will provide you with a shortcode and a widget once you make a form.
https://www.ads-software.com/plugins/mailchimp-for-wp/

Hope that helps. Let me know if you have any questions.

No. Thank you for the honest and fast response