iPort xPRESS keypad remote control and Roon

I have a few iPort xPRESS keypad remote controls that I used with a Sonos system (that I’ve now abandoned). I’m trying to find any advice about using them to control basic Roon functions, just volume and pause/play. There are a few references to the iPort on the forum, from a few years ago, but nothing that either confirms that somebody has done it or how to do it.

Does anybody have any advice.

Peter