If you are planning a series of jumps (to a far away system, perhaps), you can use the Hyperspace Route Planning feature. Instead of merely clicking on a bordering system, what you have to do is shift click on systems along your chosen route, from closest to furthest in succession. Clicking on the Clear Route button resets you flight plan. Whenever you enter a new system, your ship will automatically call up the next destination on the navigation computer. All you have to do is press the Jump (default: j) key to start the next jump. Note that this doesn't speed up the travel time, it just saves you the trouble of going to the map each jump.