JD4 jumpdrives need a fuel ship to operate; a transport holds the fuel, then drops it into space; the jumpship tractors in the fuel as it is being consumed from its hold.
you'd also have to account for NPCs that steals your fuel ,so..you will be spamming "b" pretty often..or better the key you mapped to beam only the targeted commodity since you don't have space for anything else..
People want to believe that God has a plan for them.
They don't wanna believe that anyone else does..