Hello, I just installed a direct drive servo motor on my Artisan 618, and I'm having trouble figuring out the menu system. The unit has 4 buttons, and I've only been able to find setup instructions for 2 button units. I've emailed the manufacturer, to no avail. I tried running the Chinese instructions through an online translator, but it didn't give useful results. I'm close to hiring a translator to translate the Chinese instructions, but there's no saying that the original instructions ar