Using HM-PB-4DIS-WM-2 with homegear and openhab

Anyone any experience using the wireless Display push-button (HM-PB-4DIS-WM-2) without a CCU? I’m a little stuck in configuring and using it. I’m able to pair the device with homegear as central instance but i can’t use any channel because display always tells me “No device taught-in”. I don’t want to attach any device directly to that push button but just executing some openHAB rules depending on channel and action, for example “activating an alarm system” or “all lights on/off” or “leaving home” or something else.