Sorry can I clarify what you’re asking.
Do you want to have the accordion dropdown with a table in the backend of the CMS in the admin panel for content entry?
Technically yes, you’d be best to do this via a plugin.
If you want to use that in your frontend and have data populate it from Strapi, also yes and I can provide a schema for you to do this with native Strapi fields and you’d then ingest the content into the accordion component you want.