Create a new chunk in "mdx_contentTopConfig" category or any other position.
Add your content in the chunk you created. Edit/add the page and click
Template Variables>> MDx Collab Tab >> Content Top Chunks
Click Add Item and Select the new chunk you created from the dropdown.
You can add similar custom chunks in any module position. Its a dynamic MODx theme. You dont need to edit template to add custom code.
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