While your asking for all that other information give him your Captains hat grab a mop and start swabbing the deck!?!?!?!
Just kidding...
Actually in out of box version of the TDC there was a little green line from that time you see to your u-boat. the line show the course the torpedo would take as well as the spread angle if you send a salvo. I'm almost 100% sure the time is the time the torpedo would take to get to its target. The WO also sets all those dials you see to what he thinks are the best settings.
All that other stuff your asking for is what you like best course to the target. Well, as captain, should figure out. I forgot the line in the movie u-571 but the Chief warrent officer told Matthew something to the affect of as a Captain don't tell your crew you think know something. TELL them you know.