How do you shift 18 speed gear?

If you're already familiar with unsynchronised transmissions, the shift pattern is basically a nine speed, with the option of being able to split gears, via the lever on the side of the transmission. When pushed forward, it puts you in the high side of the gear, and puts you on the low side of the gear when pulled to the rear. To shift between the two ranges, you simply let off the accelerator, pause, then press on the accelerator again. If you do it too quickly, it won't catch the gear.

If you're not familiar with shifting these unsychronised gearboxes, you're not going to learn it simply by reading about it. You need to be trained on shifting nine and ten speed transmissions first, then wait until you've got it figured out before you get into the 13 and 18 speeds.