TP Stations and FM Stations

My Superb has the sat-nav/audio system fitted.

I just wondered whether anyone had figured out the logic behind the TP/FM radio categories?

As far as I can make out (and the manual is next to useless) I need to tune and store a set of stations under the "FM" location if I want to listen to the radio without traffic news. I then need to tune and store the same set of stations under a "TP" location if I want to be interrupted by traffic news.

Can't say I see the logic of having to do everything twice.

Other car's I've had with RDS and TP simply have a TP button which you press if you want to enable the traffic programme.

Am I missing something with the Skoda?

Rob