Yes I know, according to the manual is bi-directional, very easy probably to implement with the hardware circuit.
What I don't understand, though, is how use the switch using A/B an inputs. Should it work like a patch, so any signal arriving either to A or B is routed to C? Doesn't make much sense. If they had to choose one or another, considering C input and A/B alternate outputs should have been the way to go.
BTW, I understand that they may have designed the virtual circuit framework allowing a connection to be either in or out and not both, but they can always duplicate the module (AB->C) making the copy work in the opposite way (C->AB). Logic wouldn't be very hard to implement, with a variable remembering if the last routed output was A or B.