News from the ZWave front! I found the culprit for my inability to pair anything in secure mode and it was the Au-zwaveme dongle that came with the unit.
Won't bore you with all the ins and outs but a couple of weeks of frustration was cured when I replaced the dongle with a Zstick and after that have paired my garage door opener, two door locks (KAS600) and Zconnect Garage controller I use on my electric driveway gates. ALL PAIRED FIRST TIME IN SECURE MODE ......meaning they now work!
This may be a stupid question but to be clear, simply replacing the included ZWaveMe dongle with the ZStick and plugging it into the Hubitat just worked without anything else needing to be done ?