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Group rooms into a zone in Home on Mac
You can group rooms to form a zone so that accessories in multiple rooms are controlled at once. For example, you could create a zone to control all of the rooms on the ground floor of your house and call it Downstairs.
Go to the Home app
on your Mac.
Click a room in the sidebar, then choose Edit > Edit Room.
Click Zone, click a zone from the list or click Create New to create a new one, then click Done.
Add two or more rooms to create a zone.
To control this zone, use Siri: “Turn off the downstairs lights.” Learn how to use Siri.
You can’t rename a zone, but you can delete it by swiping left with two fingers on a trackpad, or swiping left with one finger on a mouse, then clicking Delete.