Grouping rooms using the Sonos app for iOS or Android 1. Tap the Rooms tab. 2. Tap Group and select the rooms you want to add and tap “Done.” If you want to group all the rooms, tap “Everywhere.” 3. Choose which music to play in the selected rooms if prompted. Grouping rooms using the Sonos app for Mac or PC 1. From the ROOMS pane on the left side of the controller, click “Group." 2. Select the rooms you want to add to this group, and then click “Done.” If you want to group all the rooms, click “Select All.” 3. Choose which music to play in the selected rooms from the prompt.