Is there any way to export tag attributes to PDF?

[tedp80165091]

In the InDesign structure pane I can add attributes to tags:

I can then export to PDF, checking the option to create a tagged PDF:

However, while the tags exist in the PDF, the attributes do not:

I fully expect that Adobe simply never implemented and/or doesn't support this use case, but I'm asking here on the off chance someone can point out a way to accomplish this.

Or if anyone knows some other way to embed metadata into tags (or some other document object like a table) that will survive the export to PDF.

Any help appreciated.

[Mike Witherell]

These are two different kinds of tagging that you are mixing together. XML structural tags

https://helpx.adobe.com/indesign/using/structuring-documents-xml.html#structure_pane_overview

versus Accessibility tags

https://helpx.adobe.com/indesign/using/creating-accessible-pdfs.html#WorkflowforcreatingaccessiblePD...

[tedp80165091]

Are you aware of any way to export tag metadata with accessibility tags?