Geez, I feel so embarrassed
It is working! But....I can promise you I must have attempted this at the time of posting (the OP is old) and something must have gone wrong because I was aware of that option in the menu!
In fact, it's odd that nobody mentioned this in my OP!? That should have been the starting point for troubleshooting a problem.
Oh well, all cleared, it's working, I'm happy!
Thanks for your patience and guidance!