Video to DMX with RGBW - How to?


I am converting a video stream to DMX lights. (RGBW not RGB)
I am sending the data from VDMX to a 32 Channel (8x 4 channels RGBW) DMX controller sampling areas of a video for color (NDI in), so nothing unusual in concept.
Technically it seems to work, except that V2DMX only supports RGB (not RGBW), so besides not having while, my RGB channels are getting mixed after the 1st fixture (since it starts the second fixture on Channel 4 not Channel 5 and so on. Does anyone know how to get around this issue (how to skip a blank, or do this with different layers)?