Create dynamic content from one WP page to multiple other pages

The WordPress doesn’t operate with concept of partial content. The content of the post is seen as single block of text/markup, possibly with embedded external elements. Even in latter case that is considered one way flow — content output will process embeds, but embeds aren’t meant to be extracted from content.

In your case I would guess the data architecture would depends on how standalone “paragraphs” really are.

I see roughly two cases:

  1. Paragraph is a Custom Post Type (each of them, or post per collection of paragraphs), which are created/managed independently and which pages & profiles embed in some form.

  2. Paragraphs are a Custom Field of page (part of its meta data) and managed together with it, which profiles access through the page’s ID.

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