Make the IAC Driver bus available as a MIDI destination in Qlab.
(If you can't see it as an option, click the Audio MIDI setup button under the Audio tab in the workspace settings. This will launch OSX's Audio MIDI Setup. Choose MIDI studio from the Window menu, select the IAC driver and enable it (check "Device is online"))
Create an MTC cue in Qlab and make sure the routing is to IAC Driver Bus 1.
In Nomad, make sure MTC receive, Local MIDI and USB MIDI checkboxes are enabled in the show control settings.
Create a show control list and set source to be MIDI, external.
Fire your MTC cue in Qlab and your green timecode clock in Nomad should reflect the incoming timecode.
