The VR6D-HS, VR5D, and VKM600T-HS drivers can use white and varnish. The VK300D and the VK3220T-HS can use white.
To configure these spot inks, you need to make the configurations in the "Page Setup" module:
Info
For more details on the topic, please take a look at the article on Spot Inks.
If the printer has a dual CMYK ink set with White inks make sure that under the wrench CMYK is selected otherwise White might not print (Applicable to the VR6D-HS)