Interrupt pins in uARM Swift Pro

I’m trying to develop a custom tool to attach to the uARM swift pro. I’m using a DC motor with magnetic encoders, which require 2 interrupt pins on the arduino. On the arduino Mega these are pins 2,3,18,19,20,21.
I didn’t find them annotated in the developer guide, however the pins_Swift.h file mentions pins 2 and 3 being used for some LED.
Is there any way to access two of these pins on the swift pro?
Thanks a lot!

Hi, please take a picture about arduino board that that needs explanation, thanks.