This was the post I believe :https://www.bmaxownersclub.co.uk/forum/forum_posts.asp?TID=272&PID=1843&title=tick-boxes-save-but-dont-do-it#1843
It was not an official update, it was something that I had found on another site, where a person had "hacked" the car software by connecting some Russian software on a laptop. . This would invalidate your warranty of your car.
As for the 'features' being on or off, it would make sense to put all the features in on the Titanium, and then switch them off as per the customers choice, but I am not sure if it's something they would do between trims (Zetec / Studio ) .... Monty may be able to help you there being a Ford person
If you are going to use a DAB radio, you can turn on DAB SERVICE LINKING, this then allows the radio to auto tune to the next strongest frequency of the station you are listening to automatically when leaving frequency coverage area.
In the SYNC menu:- AUDIO SETTINGS -> DAB SERVICE LINK (check the box to turn it on)