How do you set seat positions clk 320?

Seat positions in my CLK are set by using the seat-back-headrest buttons on the inside upper front of the door. After you move the buttons to get the best position for the principal driver press and hold down the green button for a few seconds then press the number 1 button. Other drivers can select other numbers. After that any time you want your settings press and hold the number 1 while the seat readjusts.