You can hook up to 3 displays to your Structure Scan box. The Gen 1 will display whatever the box puts out. so yes to your first question. Structure Map is a feature that was added with Gen 2 and the faster processor. It displays the side scan image as an overlay on your map screen.
Hybrid/Striper Guide Skiatook Lake Fishing Guides
Lowrance Pro Staff, Zebco Brands Pro Staff,
Yeti Pro Staff, Costa Del Mar Pro Staff, Mercury/Motor Guide Pro Team.