Hi Eliana. What exactly do you mean, open graph data or microdata? These are different things, but many confuse them.

In the each SP page settings there are fields to add open graph data. Page Settings > SEO tab

What is Open Graph data https://ogp.me/

As for Microdata, it is impossible to add this to SP pages and to the template in manual mode. There are no options for this. This can only be done if you write the source code of the pages manually or through PHP / JS scripts.

What is Microdata https://developer.mozilla.org/en-US/docs/Web/HTML/Microdata

Look for extensions on JED if you need microdata.

Hi Eliana.

becuase Microdata - it's sort of HTML code it can be used inside Raw HTML addon if you can generate correct code syntax. It means that on each subpage that code may look different with required changes.

Of course there are extra components (for example Google Structured Data from Tassos.gr) that can manage that ... but only few of them support SPPB.

thanks @Pavel for your tips