Groups are now possible with Chromcast Audio, but setup can be a little tricky.
Google's audio-only addition to the Chromecast lineup this year seemed a little lackluster at first, but adding higher quality audio and the ability to group multiple Chromecast Audio together has elevated the accessory to a must for folks with multiple speaker setups in the home.
As is often the case with new software, there's a few things you need to know in order to get everything up and running in your home or office.