currently, Electra always routes messages between the interfaces (USB Host, USB dev, MIDI IO) keeping the port unchanged and 1:1. It means that message sent to USB Host port 1 will be always sent the to, say, MIDI IO port 1 when enabled. A message sent to USB Host port 2 will land on the MIDI IO port 2. The same counts for all other interfaces. This functionality can be enabled or disabled. At this moment there is no way to re-route messages from port 1 to port 2 or duplicate them to both ports.