Mark messages as seen with REST API

RT has the ability to mark messages as seen via the HTTP GET Request /Display.html?id=123&MarkAsSeen=1&Anchor=txn-54321

In addition to the REST API for managing tickets, we use the above HTTP GET Request for mark messages as seen.

As far as we can see from the REST API documentation, there is no interface to request the same behavior via REST.

Are there any plans to offer the option to mark messages as read via the REST API?
Or is it possible to replicate this behavior using existing REST API requests?

Thank you for your response!