steps to take to get it configured
add channels and set to a universe # ie )1
create a display group for these channels
now click on the output / select output method and compile for show
you will see your channels and univers assignment click on transport and select usb- dmx .
just to note other than comport and ip settings , all output ptotocols are selected and set after a display group is created
0 channel assignments will show in output config dialog until you have a display group and universe # created for them .