GPS Wireless Tracker 1.2 config

I have a HTIT-Tracker v1.2 with meshtestic firmware.
How should I enable the GPS module?
What are the GPIO parameters in the Position menu?
GPS RX GPIO
GPS TX GPIO
GPS IN GPIO

These are the pins you would want to use:

#define GPS_ENABLE_PIN 3
#define GPS_RX 33
#define GPS_TX 34

The GPS_ENABLE_PIN needs to be set to HIGH in order to activate the GPS module. Then you can define HardwareSerial named Serial1 on RX & TX pins and you can access data from the module