PR54-3 A0-A5 addressing

Regarding the PR54-3 board, the specifications and pinout sheet refer to Analog post A0-A5 being available. How are these addressed in Arduino code. Is there a special Library?


The pinout of that screw terminal interface board matches the pinout of Particle Gen 3 modules as shown here:

So if the Adafruit Feather is plugged into the PR54-3 the PR54-3 is not giving me any additional Analog ports other than A0 provided by the Feather. There is no additional ADC chip on the PR54-3? to provide A1-A5 for a Feather.

Is that correct?