Home-Assistant-Config/config/groups.yaml

default_view:
    view: no

joshs_room:
    name: Josh's Room
    view: yes
    entities:
      - sensor.dht_sensor_temperature
      - sensor.dht_sensor_humidity
      - history_graph.humidity
      - history_graph.temperature
      - group.switches
      - group.all_automations
      - group.lights
      - cover.blinds
      - media_player.spotify

switches:
    name: Switches
    icon: mdi:switch
    entities:
      - switch.anet
      - switch.subwoofer
      - switch.desktop

lights:
    name: Lights
    icon: mdi:lamp
    entities:
      - light.led_strip
      - light.room_light
      
living_room:
  name: Living Room
  view: yes
  entities:
    - media_player.wohnzimmer