Thanks @sam_nazarko. What are the other values I can try in VEROS device settings as If I can get the Ch up and down keys working I can use it as Context Menu and some other action.
From the video you will see that with Foxtel STB the keys CH up and down working via Samsung Remote and just need to find a way to make these keys send to VERO4K as then I repoint them
Recorded Video on my Samsung TV as below and you can see remote working with Foxtel.
https://goo.gl/photos/rV6qCcrdvsqZgDtH6
Also answers to your questions:
Can you check if the firmware on the TV is up to date? It’s resolved Samsung TV issues in the past beforehand - Yes FW is up to date as per Samsung SITE
Did you reboot after you made the above changes? YES first TV from the wall socket and then the VERO4K
Comment about the Foxtel is interesting: can you take a few photos so I can see how it looks?
As above