Can I Stop Sending “Read” Receipts To a Specific Contact?

In Messages, can I stop sending “Read” receipts to a specific contact? I know that I can turn read receipts off or on for all contacts. I read an article online recently that showed in great detail how to turn off read receipts for a specific contact. The article was about two or three years old, but it appears that at one time iOS allowed the user to do as I’ve described. Was this feature available at one time, but now has been removed? I can’t duplicate the steps laid out in the article, so it seems I can’t do it any more.
I have one contact who sends me many more messages than I’d care to relate. I’d like NOT to let this contact know that I’ve read her messages.
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Lucas H