Control of fans it's confusing to me

Flagship K Series
1

In CP6 in the Device area we can control the fans with a slider. There are 3 types:

  1. Model fan
  2. Side fan
  3. Case fan

Now in the Prepare area we can make settings for cooling for a filament type. Here I see:

  1. Part cooling fan
  2. Auxiliary part cooling fan
  3. Exhaust fan

This is confusing to me. How can we set the model fan, side fan and case fan in the filament settings, it’s not clear the naming is not consistent? And the case fan is never turned on. Is that normal?