Last year, Philips introduced Hue zones in the Hue app. This made it possible to either combine several rooms or group individual lamps within a room. Until now, the zones were a beta feature but this will change with the update to version 3.4.0 of the Hue app.
Hue app: Zones no longer in beta status with next update Version 3.4.0 brings new features
Version 3.4.0 brings new features