In my 2012 car, you don't get a separate Eco-Drive Pro button, but Eco Drive appears in the iDrive menu and is an extra on the list of the Dynamic Drive Control (i.e. the Sport+ thru Comfort + control).
I've only had the car a couple of days and haven't really concentrated on the new Eco features!
Pics...
Eco-Drive doesn't
seem to have an effect on SAT as such, but it does add stop/start to auto boxes. I'm getting used to it and don't mind having stop/start, but I know that some don't welcome the addition! You can switch it off, with a new button underneath the engine start/stop button (as I understand the manuals gearboxes have always had in F10/F11)