Dropdown in HADashboard

If I have the following:

LED_Effect:
  widget_type: light
  entity: light.fastled_ws2812_light
  on_attributes:
     brightness: 60
     effect: Rainbow Effect With Custom Values

How do I change the effect with a dropdown?

Can you click on the card and get a pop up?

No. It just acts as a button in its current state. This is HADashboard.
If I do it in Lovelace, yes - then I get a color wheel and an effects drop down.

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