Lowrance Hook 5HDI

I have a Lowrance Hook 5HDI and have two problems, the first is I don't know how to put the lake map on the screen by itself, the guy at Bass Pro set it up with split screens for about 4 different applications. The second problem is when I try to mark a waypoint a notice comes on the screen and asks if I want to save the waypoint or cancel, I don't know what key I should push to save the location, thanks for any help you might give an old man.

Been a while since I worked with a Hook 5HDI. I will send you a PM to call me, so I can walk you through the process of saving the weigh-point.