GridTracker is designed for Amateur radio use. It's original tag-line was: "GridTracker listens to traffic from WSJT-X and displays it on a map. It will also load ADIF log files".
This was back in February of 2018. At its core GridTracker has remained true to that description but it has evolved to be a very powerful amateur radio tool and not just for FT8.
GridTracker is a warehouse of amateur radio information presented in an easy to use interface, from live traffic decodes, logbooks, spot reports, weather, current solar conditions and more.
GridTracker can be downloaded for nearly all common platforms (Windows, MacOS, Linux, Raspberry Pi) from the [downloads](https://gridtracker.org/downloads/) page on our website GridTracker.org.
Our builds and development environment are usually managed by [nwjs-builder-phoenix](https://github.com/evshiron/nwjs-builder-phoenix), but it only supports Intel-based architectures.
We've added internal support for reordering roster columns, but have yet to implement a UI to change these settings.
In the meantime you can:
* Open the roster window, right click on the "More Controls" link on the top right corner and select "Inspect" from the context menu.
* Select the "Console" tab in the Chrome DevTools window that should have appeared.
* Enter `g_rosterSettings.columnOrder` in the Console and press `[return]` to see the current list of columns.
* Enter the following in the Console, changing the values of `columnOrder` to fit your needs: `changeRosterColumnOrder(["Callsign", "Grid", "Spot"]);` and press `[return]`.
Any columns included in this list will be shown before all other columns.