Like the title says… how did you do it? I’m guessing we need to take DMX in from the Martin hardware via a USB or DMX to Artnet box on the Madrix computer…
cheers
Download MPC.
4 free U of art net!
Connect to Madrix computer NIC.
Make sure both NICS are 2.0.0.x.
Waaaaaaaay better than LJ.
If your martin usb interface is modern you can use it to control the other lights with dmx. OR buy an open dmx for less than 100usd.
Problem solved 
Legacy install unfortunately