Thanks for those pointers, I’ll attempt to set that up in the next couple of days.
One other question I had was what is the best way to implement a toggle switch? In this case there is only 1 button for the power on most AV appliances and it just sends the same command for ON/OFF. Secondly, since there is no state feedback from the the blackbean (or my AV applicances) as to the power state ON or OFF, then Openhab really is never sure if the device is on or off so having a status indicator in the switch display does not have any practical use.
Extending this we have commands to set, for example, the video source on the AV receiver. I hope that Openhab has some sort of virtual switch that can have multiple (enumerated?) states that would simply show the state as the last command sent. I’ll check the OH doco for something like this.