Yes, I've used the Wanhao Duplicator 4s setting, but it is a single extruder profile and why have a dual extruder printer when you can only use one extruder?? I've chosen to attempt to create my own, which is almost what I did for the Ender 2 which brought me into the Cura world in the first place. I chose the Ultimaker "Original Dual Extruder" with a dual extruder, and am currently swapping out the G-code and settings with everything I can glean from everyone I've run across with the actual settings for the Duplicator 4. I can't try it out until Monday when a part arrives I need to make the printer operational (a support broke in shipping). I believe the native Cura has an export function that will already allow you to save your files to an X3G format, or maybe I've already downloaded and installed that plugin; sometimes you just keep throwing spaghetti at the wall and hope it sticks. If I get it up and working, I'll post it here and on Facebook in the Wanhao user's group. I really like the idea of clicking a button and changing the filament color mid printing, should add some zest to the whole deal, eh?