styrbar.yaml

#Zuulcode(2023), all rights reserved.
blueprint:
  name: Styrbar multiple lights
  description: A blueprint that allows Ikea styrbar light controller to be used to
    control multiple lights, made by Zuul.
  domain: automation
  input:
    controller:
      name: Controller
      description: The styrbar controller to be used to control the lights.
      selector:
        entity:
          domain: sensor
          multiple: false
    light_number:
      name: Light number
      description: An input_number helper with minimum value 1 and maximum value of
        at least the amount of lights used. This input should be configured to use
        increments of 1.
      selector:
        entity:
          domain: input_number
          multiple: false
    lights:
      name: Light(s)
      description: The lights that will be controlled by the controller.
      selector:
        entity:
          domain: light
          multiple: true
  source_url: https://gist.github.com/Zuulcode/6149d9c61c8679d963aeecde02055269
variables:
  light_number: !input light_number
  lights: !input lights
mode: restart
trigger:
- platform: state
  entity_id:
  - !input controller
  to: 'on'
  id: 'on'
- platform: state
  entity_id:
  - !input controller
  to: 'off'
  id: 'off'
- platform: state
  entity_id:
  - !input controller
  to: arrow_left_click
  id: arrow_left_click
- platform: state
  entity_id:
  - !input controller
  to: arrow_right_click
  id: arrow_right_click
- platform: state
  entity_id:
  - !input controller
  to: brightness_move_up
  id: brightness_move_up
- platform: state
  entity_id:
  - !input controller
  to: brightness_move_down
  id: brightness_move_down
- platform: state
  entity_id:
  - !input controller
  to: brightness_stop
  id: brightness_stop
action:
- choose:
  - conditions:
    - condition: trigger
      id: 'on'
    sequence:
    - service: light.turn_on
      target:
        entity_id: '{{ lights[int(states(light_number)) - 1] }}'
  - conditions:
    - condition: trigger
      id: 'off'
    sequence:
    - service: light.turn_off
      target:
        entity_id: '{{ lights[int(states(light_number)) - 1] }}'
  - conditions:
    - condition: trigger
      id: arrow_left_click
    sequence:
    - service: input_number.set_value
      data:
        value: '{% if int(states(light_number)) > 1 %} {{ int(states(light_number))
          - 1 }} {% else %} {{ lights|length }} {% endif %}'
      target:
        entity_id: !input light_number
  - conditions:
    - condition: trigger
      id: arrow_right_click
    sequence:
    - service: input_number.set_value
      data:
        value: '{% if int(states(light_number)) < lights|length %} {{ int(states(light_number))
          + 1 }} {% else %} 1 {% endif %}'
      target:
        entity_id: !input light_number
  - conditions:
    - condition: trigger
      id: brightness_move_up
    sequence:
    - repeat:
        until:
        - condition: trigger
          id: brightness_stop
        sequence:
        - service: light.turn_on
          target:
            entity_id: '{{ lights[int(states(light_number)) - 1] }}'
          data:
            brightness_step_pct: 10
        - delay:
            hours: 0
            minutes: 0
            seconds: 0
            milliseconds: 500
  - conditions:
    - condition: trigger
      id: brightness_move_down
    sequence:
    - repeat:
        until:
        - condition: trigger
          id: brightness_stop
        sequence:
        - service: light.turn_on
          target:
            entity_id: '{{ lights[int(states(light_number)) - 1] }}'
          data:
            brightness_step_pct: -10
        - delay:
            hours: 0
            minutes: 0
            seconds: 0
            milliseconds: 500

I can't post a PR but I forked the project and added support for update entities for the remote
https://gist.github.com/gilgoldzweig/c823f9caaa8ab85d2ed2627582f1cab7