Choose [Button] -> [ A or B ]-> [Configure], select Channel Type as Resistive.

1. Choose [Button] -> [ A or B ]-> [Range and Position],
2. clear previous buttons,
3. click Auto Detect.

4. Press the steering wheel buttons one by one.

5. After all the buttons are detected, click Auto Detect again to finish auto-detection.

Button bar turns to green when the steering wheel button is pressed.

The resistance values can be fine tuned manually. After you change the values, click Save/Apply.
Resistor range and position of the buttons are stored in the onboard memory of CPJexc.

If the buttons in Manager are too close each other, tune the Adjustment A/B on the board.