Devices.MyDevice = function(opts){
  // create device object
  var device = Synergio.Device({
    name: "My Device"
  }.merge(opts));
  
  // customize object
  // ...   
  
  return device; // remember to return
}

var myItem = Devices.MyDevice({coords: [50, 50]});

Presets.MyPreset = function(){
    var obj1  = Devices.MyDevice1({coords: [50, 50]})
    var obj2  = Devices.MyDevice2({coords: [150, 50]})

    obj1.outputs[0].connectWith(obj2.inputs[0])
    obj1.outputs[1].connectWith(obj2.inputs[1])
}