US Patent 9671997 Zone grouping

An example method involves causing a control device to display a graphical user interface that comprises an indication of a first zone of a media playback system, wherein the media playback system comprises the first zone and a second zone, and wherein the graphical user interface does not comprise an indication of the second zone. The example method further involves detecting, by the control device, an input that indicates a command to cause the first zone to form a zone group with the second zone and play back a target media in synchrony with the second zone. The method further comprises, based on the detected input, causing the first zone to form a zone group with the second zone and play back the target media in synchrony with the second zone.