Custom Schema for “Thing”

Hi RankMath Support:

I want to annotate certain keywords in my blog post to associate them with certain “Entity” types.

For example, I want to add the “About” and “Mention” portions of the schema [see below sample JSON-LD code]. To be clear each blog post will have different About and Mention sections.

So, how can I incorporate the About/Mention sections into RankMath’s internal schema generator?

OR can I just copy/paste this within the content main body using an HTML block?

Lastly, would I need to upgrade to a PRO version of RankMath to accomplish the above?

======================
script

“@context”: “https://schema.org”,
“@type”: “WebPage”,
“@id”: “https://www.DOMAINNAME.com/types-of-succulents/#ContentSchema”,
“headline”: “Types Of Succulents”,
“url”: “https://www.DOMAINNAME.com/types-of-succulents/”,

++++++++THIS IS THE SECTION I WOULD LIKE TO ADD++++++++++
“about”: [
{“@type”: “Thing”, “name”: “Succulents”, “sameAs”: “https://en.wikipedia.org/wiki/Succulent_plant”}
],
“mentions”: [
{“@type”: “Thing”, “name”: “plants”, “sameAs”: “https://en.wikipedia.org/wiki/Plant”},
{“@type”: “Thing”, “name”: “Garden”, “sameAs”: “https://en.wikipedia.org/wiki/Garden”},
{“@type”: “Thing”, “name”: “Cacti”, “sameAs”: “https://en.wikipedia.org/wiki/Cactus”},
++++++++THIS IS THE SECTION I WOULD LIKE TO ADD++++++++++

] }

===========================

Rgds,
Elliot