What is toggleButton supposed to do

[pz1]

I am playing with the Devices modules, more specifically the HTTPDevice. I do not understand here what the toggleButton is suppoesed to do. Intuitively from the template it looks like a binary switch that is operated by only one command: http://IP/action/on. I had expected/hoped to have an on and off command that would allow me to toggle the StellaZ mode from Heat to HeatSaving and back, etc using the OpenRemoteHelpers without using a status bit coming back from the device.

As this apparantly is not the case, could anyone give me a working example of toggleButton?
Thanks

[PoltoS]

it is like a scene - you can press the button ON, but you can not press OFF.