The check button called INFO KEY has multiple functions, which depend on the active view and situation.
Chart Views: Press the INFO KEY while in any navigation view to display information about objects that are near the active cursor. If the cursor is not active, the ChartInfo Submenu will be displayed. See VIEWS: Viewing Cartography for more information.
Screen Snapshots: In Chart Views, highlite a screen snapshot or recording icon and press the INFO KEY. Select chart info or view snapshots from the submenu. See: Snapshot or recording views for more information..
If you dont have a manual you can go to the HB web site and download the product manual in .PDF......
Chuck