[Psitticine]

As MB says, it is supposed to let you target more than one enemy in a turn.

Unfortunately, you seem to be able to do that without it.

If you click off weapons, you can fire at one ship, click the unfired weapons back on, and fire them at another ship. I believe that is supposed to work only with multiplex tracking but it doesn't seem to require it.

Also, if you destroy a ship, you can redirect the unfired weapons you had trained on that ship elsewhere. I think that, too, is meant to be only for ships with multiplex tracking.

IOW, as far as I can tell, it's bugged.