Over the last few years of flying the DF727, I've discovered a couple of undocumented features on the panels.

The first is the O2 pressure gauges on the engineer's panel. The #2 gauge usually (but not always) reads low, but if you tap on it by right clicking on the gauge face, the pressure comes up to normal.

The second are the wing strobes. There are two flash settings for these. A single flash and a dual sequential flash. By toggling the strobe switch on the overhead, you can choose which one you prefer.

Has anyone else discovered undocumented features of their aircraft?