I searched around and didn't find an answer.
I've got two SPI devices in use on this project. One SPI breakout is large and will have to be mounted off the main board, but the second is tiny and it would be ideal if it could just install into the Due's header. This would require defining two sets of SPI pins. Is it possible to declare duplicate pins on the same bus, or would I have to hack a library to use the second SPI bus to pull this off?