Fakro ARZ shutters incorrectly identified as ZWS12 chain actuator + doesn't seem to actually report state

I just installed the latest Z-Wave binding and can now confirm that the ARZ Z-Wave roller shutters are correctly being identified.

Now I can start correcting the XML entry in the Z-Wave database as I see some things don’t seem to work the way expected.

For instance, I cannot assign the controller to group 1:

2019-04-10 17:51:22.318 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update received
2019-04-10 17:51:22.324 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set action_heal to false (Boolean)
2019-04-10 17:51:22.326 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update ignored switchall_mode to 255 (BigDecimal)
2019-04-10 17:51:22.328 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set binding_cmdrepollperiod to 1500 (BigDecimal)
2019-04-10 17:51:22.330 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set action_reinit to false (Boolean)
2019-04-10 17:51:22.333 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set action_failed to false (Boolean)

2019-04-10 17:51:22.335 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set group_1 to [controller] (ArrayList)
2019-04-10 17:51:22.337 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Association [controller] consolidated to {}
2019-04-10 17:51:22.339 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Unknown association group 1
2019-04-10 17:51:22.341 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set action_remove to false (Boolean)
2019-04-10 17:51:22.343 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update set binding_pollperiod to 86400 (BigDecimal)
2019-04-10 17:51:22.346 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Polling intialised at 86400 seconds - start in 41644800 milliseconds.
2019-04-10 17:51:22.348 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 2: Configuration update ignored node_id to 2 (BigDecimal)

The problem is that the documentation for these roller shutters seems to be incomplete. I will now modify locally the XML file in my Z-Wave binding JAR file to make it work and then update the Z-Wave device database once I figured out how things work (in the absence of complete documentation).

Update: Although CMD_CLASS_ASSOCIATION is supported, I can’t figure out how. The manual mentions “All On” and “All Off” function (groups) but nowhere I can find proper documentation on how tp properly add these to the XML file.