How to change SCSn number ?

[jinyistudio534]

I use this board for test ethercat master
https://www.hwhardsoft.de/english/projects/industrial-controller/

My esp32 is sparkfun thingplus type-c
https://learn.sparkfun.com/tutorials/esp32-thing-plus-usb-c-hookup-guide
its w5500 scs pin is IO33

Where could to modify SCSn pin number to IO33 ?