Custom Light Entity Card with Multiple lights

I am having some trouble with the Custom Light Entity Card and multiple lights. I can get the card to show with just 1 light, but I’m trying to list all lights in the room.

Thus, I’m trying for a card that will show the color wheel and an On/Off for all lights, and list each light and their individual on/off state. So the color wheel will control whatever lights happen to be on in the room.

This is the card I tried with 2 lights, but it always tell me it needs an entity. It will work with 1 Entity and 1 light. But how do you change it for multiple?

entity required.

shorten_cards: false
consolidate_entities: true
color_wheel: true
persist_features: false
brightness: true
color_temp: true
white_value: true
color_picker: true
smooth_color_wheel: true
hide_header: false
child_card: true
show_slider_percent: true
full_width_sliders: false
brightness_icon: weather-sunny
white_icon: file-word-box
temperature_icon: thermometer
type: 'custom:light-entity-card'
entities:
  - light.family_left
  - light.family_right
effects_list: false
header: Family Room