groups.yaml example

default_view:
  name: Home
  view: true
  entities:
  - group.lights

# This block is what you need to configure at least three of your lights, including your node device
lights:
  name: Lumiere
  view: false
  icon: mdi:lightbulb
  control: hidden
  entities:
  - light.cuisine_switch
  - light.salon
  - light.lumiere_plafond

# Further examples how to configure groups.yaml
weather:
  view: true
  name: Weather
  entities:
  - group.sun
  - group.forecast
sun:
  view: false
  entities:
  - sensor.time
  - sun.sun
  - sensor.sun_rising
  - sensor.sun_setting
forecast:
  view: false
  name: Daily Forecast
  entities:
  - sensor.pws_weather_1d_metric_2
  - sensor.pws_weather_1n_metric_2
  - sensor.pws_weather_2d_metric_2