Bought a HB 898c SI and can't figure out a couple of things.
Any help would be much appreciated.

1. I see that with unit you can see or follow your jig in the water below the boat. I've seen pictures on internet showing this. I can't figure out how to do this. What settings have to be in place to make this happen?

2. I fish fresh water lakes and the Mississippi. Lake depths no more than 60-70 feet. Fish mainly for crappie and walleye. What settings should this unit be set at to give optimum performance for this type of fishing?
I'm talking about all the settings and I know there could be preferences, but would really like to make it work to max and I'm challenged as to electronics. Also know this may be lengthy answer and I appreciate your tme and effort answering. I've read the manual over and over, but need help. Maybe this could become a sticky to help a lot of us challenged in this area.

Thanks so much to anyone with knowledge and willingness to share.

Fuzz