Retrofit Smart 451 front fog lamps?

Hi together, I used to have a cold … I am expected to get my first smart … 451 passion … on June 3rd and want to have fog lights retrofitted. now to ask: besides the fog lights and the mounting frame I need something like the other light steering lever (light switch) … or how does the smart? in the net I have found at least nowhere an extra switch *grill*. thx & greens, BODacious ^^