This is what I want to use my trolling motor and fish finder / GPS.
I want to be able to go down a shoreline or around a rockpile or weed bed and record a trail where I've been and save it. And save multiple trails. So in a couple days, couple weeks or years I can go back hit the button and let the unit and trolling motor follow the same trail and take me fishing. Or share the trail with Buddy's. I also want to be able to edit the trail on my computer . With a mapping software.
Now with the the big three hummingbird / ultrex MinnKota, lowrance ghost and HDs units, And the new Garmin Force linked with there chartplotter which setup is going to be the best to do this.