Door sensor - how to configure arm/disarm toggle?

[przemhb]

I'd be thankful if you could shed some light onto door sensor configuration.

I've moved just recently from Vera to Domoticz. In Vera door sensor was represented as a device consisting of three: door open/closed contact, sensor arm/disarm switch and battery level. In Domoticz it consists from 3 devices also: Sensor, Alarm Level and Alarm Type.

I have configured Sensor as Door Contact and it detects when door are opened/closed. I've configured Alarm Type as Door Lock guessing it will work as Arm/Disarm switch, but I get an "error while sending command to switch, check device". What is causing it? Have I done something improperly?
Please also take a look at my other post http://www.domoticz.com/forum/viewtopic ... 24&t=24875.

How to configure Alarm Level subdevice?

Is there a way to display the sensor as multidevice composed of door contact and lock battery level and arm switch in Domoticz or these always have to be separate?