seeeduino mega : 16 extra digital i/o

Products & Technology Arduino & Seeeduino
5

Hello,
Can use the GPIO register to config the extern 16 IOs at this moment.
And we may modify the internal file(Pin_arduino.c) to match the IOs, if possible.
PH2 -->70;
PH7 -->71;
.
.
.
PE2 -->85.
Thanks
Albert