I tried this a variety of ways and only get the error that "something
went wrong, try again later", from the Google Home app. If I start with
CCWGTV then add other speakers or speaker groups and vice versa. All no
luck with YouTube music.
Please do this. Copying would be great too as I often create large
routines that are mostly similar and it sucks to recreate them from
scratch. I have 50+ routines and don't want to recreate them under