The Brennan does not use Tags at the moment.
What Brennan plan to do in the future is not known by the user community on this forum.
There is a wish list mechanism n the forum and tags are on this list.
Martin Brennan does take note of this wish list when moving his product forward.
I suspect that should tag functionality be added to the Brennan product this will be available on all Brennan units (via a software update), as this is how things have worked before (eg Sonos speaker linking).
Fred