You may want to create Reference Lines
from your [PD] green pill as an Axis.
To name them arbitrarily (according to your rating bins),
you may want to create a distinct Ref Line for each bin.
Hope this would make sense.
Thanks a lot for your answer, it was helpful. I guess you can call it a solution, but not the perfect one (for me at least).
Thanks for your time,
Michael, you're welcome.