Reading system has an option to show document elements

Several existing braille reading products have an option to show special codes indicating paragraphs, images, etc, instead of showing the formatted layout of the text.
The codes these products use are not standardized, but may be based on legacy products, which in turn may have taken inspiration from a provisional BANA standard for linear braille (circa 1987). Such codes are not internationalized.

Proposal:
That reading systems can format the text (as the braille was originally designed) according to the specifications in the book, or have an option to show the basic structure instead, unformatted.

Example:
(formatted)
[space][space]This is a paragraph of text.
(when formatted, a typical paragraph of braille starts with the first line indented two cells - starting in cell 3)

(with format markers)
[p] This is a paragraph of text.

Further, a common set of format markers should be developed and standardized.

A user may then also be able to search for a particular kind of format marker as well as text - e.g. specifically navigate to a paragraph containing certain text. It is another option for navigation.

It may be particularly helpful if a reading system also has an editor/note taker.