Advanced Layout Editor for post types – child theme modification

Hi,
Due https://kriesi.at/support/topic/where-is-the-advanced-layout-editor-for-blog-post/ and https://vimeo.com/64996057 video I hardcoded /config-templatebuilder/avia-template-builder/config/meta.php file.
This modification works for a parent theme, but it doesn’t work when used in child theme.

Is that possible to make it work in a child theme?
I reckon that some kind of checkbox to on/off this option ought to be in admin panel.

Kind regards
M