Dave, While running side image and you see a stump you want to mark, I hit the arrow key to get cursor on screen, then arrow over to stump and push w/p key. It marks w/p, you edit it or remember # for future references.My Lowrance shows me as an arrow, so I can turn and follow path back to w/p or hit find button and enter #. I'll show you next trip over( we can go find all your w/p and see what they look like). Sounds like good deal to me. You can actually mark a w/p from 40 to 80 ft. away