How to insert a custom internal title to a row?

I know we can define the ID and/or the Class of a row, but how about inserting a custom title to a row?

The reason for this is that I have a table of contents that reacts to certain rows, and a watcher that changes the items in the TOC depending on the ID of the row. The items must have a human-readable title for each row...

How to do this?

Hi
a row is a container, there is no "title" feature for it. The title attribute is available for images, videos, buttons, links ... items that generate some content. A row is only a container
CEd

PS : I also don't understand the relation between the TOC and the need of a title
you can have a TOC that is created from your headings, but using a title is something that shall be used for accessibility for example, not for the structure of the TOC

The need for a title is as I said, to have a human-readable title at the TOC.
I understand your replies, my need is to have something like the custom ID or custom CSS, but in this case a custom internal title. The output could be "data-custom-title".

Can you point me into the direction to do this?

Or maybe the solution is for me to create my own addon for a virtual row with a custom title, and inside have a <div class="innercontent"></div> to hold the content...

the row is not an addon (plugin) as for the others
it's a part of the internal mechanism. You can only create some addons for the content that you put in a column (orange controls)

why not simply use headings (h1, h2, h3 ...) to put in each row and use a TOC plugin like Table Of Contents CK which retrieves the text from the headings automatically ?
www.joomlack.fr/en/joomla-extensions/table-of-contents-ck

I thought of that, but the thing is this TOC is already made by a cliente and I need to implement it the way they have it.

Thanks for the clarifications and suggestions.

My solution will be to create an addon of a custom title (hidden in the front) that will be read by a javascript function to parse the TOC.