Ok so working with the team it's an undocumented feature.
Select validate regardless a couple of times after confirming you can see those established https connections and it will then ask you to confirm the Orion Server - in my case it was SRM. (you may need to provide the IP instead)
Push through and you'll eventually be greeted with the screen to pull in the VMan devices.
Standby for a fix in the future
Thanks ceige and Chris for your time getting it happening so the App Stack now works..
Now for my internal demo - I've got my CANDY!!