To supplement the data from your flight simulator, the Nav Data Tool also references data supplied by Our Airports. This database provides additional navigational aid data that may be missing from your flight simulator but can still be used to create a chart and Nav Data.
This option is available under the DATABASE menu option.
When running this option it will download data as referenced in SETTINGS and update the Nav Data Tool database. It takes around 20 minutes to complete because suitable flight simulator compatible region codes need to be found and added to each data item.