Lene Vestergaard Hau and others have been able to slow light pulses down to 'human' speeds and even to stop a light pulse. The pulse can then be started again preserving its shape. Lukin and Fleischhauer had previously theoretically described this possibility. An extension of this theory to show that the pulse can be restarted, not only to move in the original direction as in the previous theory, but depending on the experimental setup, in any new direction. This may open for additional applications, e.g. a serial to parallel converter (demultiplexer).