Hello.
Yes, the plugin supports inserting the iframe into the modal content via the shortcode iframeBox ([iframeBox link=”” width=”600″ height=”450″).
See the screenshot https://share.cleanshot.com/5lw1b7vj
You can select the shortcodes click the button shortcode in the content editor buttons
It works for google map. Thanks.
What about for embed codes?
<div data-vi-partner-id=P002086xx data-vi-widget-ref=W-fb13dd19-xxxx-4692-b3b6-2a218506b66e ></div>
<script async src="https://www.viator.com/orion/partner/widget.js"></script>
The best way to add the code into the modal window content is using the free plugin WP Coder (https://wordpress.org/plugins/wp-coder/). Please try.