To download charts, open the Main menu and select Download Offline Charts. You will now see an overview map of your current location along with several squares covering parts of the chart.

Orca automatically downloads areas around your current location the first time you start the system. Downloaded areas are shown as green squares in the chart.

Pan the map to a new location, and a number of grey squares will appear at the center of the screen.

Press on Download to begin downloading the highlighted areas.

The selected areas will turn blue and show a progress indicator. Once the download is complete, the cell will turn green. You can download multiple cells at a time by panning the chart to a new area and pressing Download again.