How do you shift a eaton fuller 18 speed?

The shift pattern's based on the nine speed, with the addition of a splitter on the side. You'd go about your major shift motions the same as if it were a nine speed, and, when you use the splitter, you simply push the button forward or back (depending on you're shifting up or down), then you let off the accelerator, let the RPMs drop enough for it to catch the gear, then put your foot back into it. If you've missed the gear, you'll know it because your RPMs will spike when you put your foot back into the accelerator.