Open your Apple Home app
Step 1 – Select the Room tab in the bottom middle menu bar of your Apple Home app
Step 2 – Select setting in the top left corner of your Apple Home app.
Step 3 – Scroll to the bottom of your listed rooms and tap Room Settings.
Step 4 – Scroll to the bottom of your rooms and tap “Add Room”.
Step 5 – Input a name for your room. Then take or select an existing photo to customize your room background photo. Then tap save in the top right corner of your screen.
Step 6 – Verify the room you added is that the bottom of your room list, then tap Done in the top right corner of your screen.
Step 7 – swipe under the room tabs until you find your new room. Yay now go buy some new smart products to add to your smart home!