Use Harmony binding to control devices

Hi,

I recently bought a Harmony Hub.
In my Openhab I have configured a switch for sleepstate. Now I would like to turn all media devices configured in Harmony Hub off when sleepstate changes to on.

As far as I found it, Harmony Hub Binding is just for letting OH know what I switched on.

Is there a possibility to configure it, that all is switched off?

Regards

Check the documentation here there are some examples for setup and rules.