a better way to "see" it is ScRog, i think thats how they do it, but its short for "Screen of Green" you basically set up some chicken wire or some sort of screen that you train your plants through and its supposed to train your plants to grow more horizontally which would be great in your case with the limited vertical space your working with, and it also gets more colas and buds under direct light so they all do really well... hence the "Screen of Green", thats pretty much the basic idea, good luck!