Add advanced panel SEO in Wix Content (wix data)

Hello
@wingcc and @stevenjose
The subject in velo has already been opened here but nobody respond me:
https://www.wix.com/velo/forum/coding-with-velo/how-to-set-structured-data-to-dynamic-pages
Edit: i have added new detail in this post

The problem is that I do not understand how to “connect” the JSON code in a dynamic page (with database) to have the same result as a static page which offers the “advanced SEO” tab to read by Google the structured Data

Here is an example of a Wix template: https://www.wix.com/website-template/view/html/2526

and a short video (1minute) to see what i want:
https://www.screencast.com/t/7d6wzB6tz
1/ i would like to have the same fonctionnality of a static page to insert Json Code
2/As u see, in the data base i can input a JSON code

but now…

who to link ? How to make the JSON code can be read by search engines as structured data in my dynmaic page ?
I don’t see how to use the code: let structuredData = wixSeo.structuredData

Thank you for your help if u can…