Kyma 7+ can use the Pacarana's Expansion B Ethernet port instead of FireWire for computer-to-Pacarana communications. A wormhole configuration of two or more Paca(rana)s requires the use of Expansion Port B. Can you realize a working set up by adding an Ethernet switch or hub so that the Ethernet connection from the computer, and the wormhole connection, both connect to the primary Paca(rana)'s Expansion port B?