NFL2k newbie questions

[belljr]

Well not playing this series since Dreamcast days, I decided to take the jump this year after reading the reviews.

All I can say is WOW a very nice game, give me a change from Madden this year as it has grown a little stale.

Anyway I read the manual and can't find these answers, I'm at work so bear with me, on one of the option screens there is a toggle for QB "something" on/off ON by default
same for the RB and something else, what do these do?

Question 2 what is the multiple hot route option for and lastly do the passing icons always come up by themselves?

I've only messed around for about an hour, and I have to learn the controls, but I can see me having a lot of fun with this game.

Also what is manual catch for the WR? I can't find it?

Great job by Sega.

Thanks.