Layout Builder for Custom Post Types

Hi

Is this still the only way to get the Layout Builder working for posts and custom post types?

https://kriesi.at/support/topic/displaying-custom-post-types-inside-of-the-avia-layout-builder/

I tried copying that meta.php to my child theme and editing as per the video so assume you must actually hack the main themes version of that file to get this working?

Thanks guys

Jonathan