I have both ML and NL. However, for ALL JOIN I'm only including my NL devices in the macro.

I've found that this solution still does not "sync" the ML side via the BeoLink Converter. What I mean by this is that even though the NL device that drives the NL source for the BeoLink Converter JOINS another NL device, when you access the NL source via an ML device, you still get the station or playlist that was last played on the NL device that drives the BeoLink Converter. For example: the BeoSound 1 provides the NL sources for the BeoLink Converter. You start playing music on a BeoPlay A6. You then JOIN on the BeoSound 1. The BeoSound 1 is playing the same music that is played on the BeoPay A6. However, when you access the same NL source on the BeoLab 3500, you get the station last played on the BeoSound 1 rather than what the BeoSound 1 is actually playing since it joined the BeoPlay A6. This is very frustrating. It would be nice if the Converter included TuneIn and Deezer as native sources.

Otherwise, I find the ALL JOIN function to be very useful and use it often. I'm surprised that this was not included in the B&O commands. It's so easy to create a macro for it. I like the idea of assigning this to a button on the Essence Remote in LIGHT mode.

I've had a couple of buttons on Lutron wall keypads engraved as "All On" that were programmed to turn on all the lights in the home, but I found that I rarely used that. Therefore, I reprogrammed them to the "All Join" macro and find that I use that frequently. It's so convenient just being able to touch a button on the wall while walking past it. Also, I used IFTTT so that I can say "Alexa, trigger All Join." However, I very much like mjmedlo's name of "party." "Alexa, trigger PARTY!" has a much more festive ring to it!

Hi - I couldn't find that macro - can you post it again please?