For those who wants to use the pinky switch for external lights add this :
--Alternate Landing Lights
{down=device_commands.LandingLights,cockpit_device_id=devices.LIGHTS,up=device_commands.LandingLights,value_down=0,value_up=0.5,name='Alternate Landing Lights Taxi',category='Lights'},
{down=device_commands.LandingLights,cockpit_device_id=devices.LIGHTS,up=device_commands.LandingLights,value_down=1.0,value_up=0.5,name='Alternate Landing Lights Land',category='Lights'},