Its actually quite a good system, although as you say undocumented, you can select a box to show your damage and various other things, by creating a new box, right click on it while holding tab, then select your options, you can also make the borders of boxes dissapear and the titles, so you take up less space.
Server shows when you destroy a plane or "murder" a gunner etc, not sure if console output would show more detailed info, but it is nice knowing when you have taken out a gunner
