Just for information, this site and this repo have been around since 2010. Click a box and you get all that's coming, and all that's going, to that box. Hover

Just for information, this site and this repo have been around since 2010. Click a box and you get all that's coming, and all that's going, to that box. Hover over a command and the display area at the bottom of the screen explains the command. If you're looking at this on mobile, and puzzling why this might be a great thing, this predates your device's tech by a very long time.