light.yaml

  - platform: group
    name: Kitchen
    entities:
      - light.kitchen_1
      - light.kitchen_2

  - platform: group
    name: Loungeroom
    entities:
      - light.loungeroom_1
      - light.loungeroom_2
      - light.loungeroom_3
      - light.loungeroom_4

#  - platform: group
#    name: Hallway
#    entities:
#      - light.hallway_1
#      - light.hallway_2
#
#  - platform: group
#    name: Bedroom
#    entities:
#      - light.bedroom_1
#      - light.bedroom_2      
#      - light.bedroom_3
#      - light.bedroom_4    

#  - platform: group
#    name: Bedroom Night Lamps
#    entities:
#      - light.bedroom_2
#      - light.bedroom_1

  - platform: template
    lights:
      outside:
        friendly_name: Outside
        value_template: >-
          {% if states('light.outside_real') == 'unknown' %}
           off
          {% elif is_state('light.outside_real','unavailable') %}
           off
          {% else %}
           {{ states('light.outside_real') }}
          {% endif %}

        turn_on:
          - service: light.turn_on
            entity_id: light.outside_real
          - service: input_boolean.turn_on
            entity_id: input_boolean.outside_triggered
        turn_off:
          - service: light.turn_off
            entity_id: light.outside_real
          - service: input_boolean.turn_off
            entity_id: input_boolean.outside_triggered