They are a means to an end. You use them to set the mode of operation of your automatic sliding door. Whether you want fully electronic systems with a display or mechanical ones using a rotary knob or key – any demand can be implemented. Select your appropriate mode of operation: Automatic, reduced opening width, hold open, exit only, locked, or OFF. Are you concerned that unauthorised persons may change settings? The programme switch is protected, for instance, in combination with a key switch or code.