It should be able to run in xLights. Not sure if we will need to update anything. Try the "Add LOR" option in setup. Choose your COM port and baud rate then hit Add and pick the Pixie4 option. I know that CCP controller says it's based on a Pixie2 so just try the 4 and if it works I can see about adding a Pixie2 option to the dropdown. It should only cause it to reserve too many channels but the lower channels that are on that card should still work.