This has now been made possible
I asked on another forum (plasmaspider) and a kind member stepped in and fixed it.
I now have two more DRO's on my screen - "Seconds" and "Pierce Count" plus two reset buttons and a "timer running" LED.
A quick modification to the M03 and M05 macro and that was it, works perfectly, exactly what was needed.
I have asked the guy that sorted it to do a write up as I am unsure if there was any code written behind the scenes.