Thanks again Malcolm. I did not know that so yes that gives a little more flexibility later in if I wish to use it.
I am doing this solely to get Roon and I have had a couple of small issues lately where my IPad app did not connect to the Core. I followed guidelines and looked at the enable " accept connections from remotes" button and it was set correctly. I then just toggled it on and off and it worked . All strange but that is twice it has happened since I started Roon. Also more annoying is that if I favourite a track in Tidal its adds the album to my collection. I really do not like that so I guess I am seeing how I progress with Roon. I doubt I will be able to give it up now that I have it but I do have a 3 month trial.
Thanks for your posts