All Right I can certainly see how that could be useful.
Yes, currently you can only send sound to one BT speaker but there is hope for multi connections.
I just tested sending a sound to the dot using HA-Bridge and that was a simple task. Since I can trigger HA-Bridge events from HG all is well now!
Sending directly from HG may require me to build an addon program (a Project for another day).
I just need to record some Alexa voice wavs and I'm set
I may record some Jerri notification wav files for nostalgia.
I've currently set things up for my bedroom Dot, but may change that to the living room Dot.
I have both setup in the PI for when multi connections are available.
Humm may be I should add the Google Home mini that's in the kitchen: