I don't 100% understand the DMA mapping to corresponding ports, but from the Datasheet I can see that Pin4 or FTM1_CH1 is also available on Pin17. Is it possible to update the Octo library to move the DMA trigger from Pin4 to Pin17?
I've put together a new teensy, called a weensy Basically a teensy with a CC3000 and SD socket. But I used pin 4 for CS to the wifi module. Rather than move the hardware, I want to see if I can do it in software. If not, just means I have to respin the boards.