Spider and two CAN DW boards?

Is it possible to run two CAN DW boards on Spider?

CAN_DW requires a C socket, of which there is only one…
Edit: plus, C socket only exposes one set of CAN bus pins, so there’s not even anything you could do to “tweak” one together.

Yes possible. One plugs in as usual and then you need to wire the second using extender modules.