Of course that's enough control to base a drive. If you can specify direction, and jump from 1-36 parsecs on a J-1 drive, all you have to do is load up on enough fuel for four jumps, jump, see how far you are from where you want to be, hop to nearest world to refuel, repeat till you're close enough to target to use normal jumps to get there.
Just think of the possibilities inherent in a starship that can average better then 10 parsecs per jump - makes getting messages back to Capitol much quicker than J-4 Xboats, or even J-6 fast couriers....