API Jetengine and Rankmath Pro

Dear Sir Or Madam,

I’m looking for a way to automatically fill in the data for a structured data schema.

The idea is to create a custom posttype in wordpress with Jetengine plugin by Crocoblock.

In my case the custom posttype is automatically filled with data the user puts in meta-fields.

I would like to use this data as well for the structured data schema in Rank Math.

It’s already possible to pass some data by using variables parsed by Jetengine, nonetheless I am not able to control select boxes in the schema.

Do you have any idea how to solve this issue?

Best regards
Andreas