Logitech Harmony Integration with @iandday's component

what i am trying to do is
i want to use a select_input dropdown menu for my harmony
and i tried to make a group of 3 lights they are in the same spot so if i turn one up or down the other 2 have to do the same.
i tried this but it doesnot work. i put this in groups.yaml

tv_lights:
  name: TV_spots
  entities:
      - light.tv_spot_1
      - light.tv_spot_2
      - light.tv_spot_3

I am not completly newby but this is the first time i try a input_select and a group

the scripts i made for harmony are working well.
the problem is that if i select something from the dropbox it doesnot work.
i already tried to just change a switch from input_boolean but that doesnot work aswell

dropbox got it working input_select