Replicate index content in other pages

Hi

Anyone who knows how to replicate the index content in other pages (page templates) with JSON?

Previously I uses Liquid I used {{ content_for_index }}, Eg. on how the page tamplate looked for a Liquid code, I want to replicate same type of structure in JSON:

{% section 'page-header-36' %} {% section 'page-content-36' %} {% section 'page-banner-36' %} {{ content_for_index }}

In addition to above:

I have managed to replicate the index content by copyin the code and pasting it in the page tamplate, however this does not result in updates on the page as the index is updated.
Ther page is to be updated with the index content as the index is updated.
This is the end result I want.