How do you use the ESC key in Steam Link on Android with an external Bluetooth keyboard?

[SunDog]

It seems the ESC key does not actually do anything on Android with an external Bluetooth keyboard (in Windows mode, since it is Back in Android mode). Technically it opens the Google Maps app for some reason, but I disabled Google Maps so now it does nothing.
Has anyone here successfully used Steam Link with Android? It works perfectly for me but I cannot use ESC which is a really essential key for pretty much every game (pausing, saving, loading, exiting, settings, etc). Can it be remapped manually? I figure there surely has to be a way, or else Steam Link is practically unusable on Android with a keyboard. I appreciate any help!

[SunDog]

Oh I found the solution!!! I hope this is help to others!
To use ESC, and also F1, F2, etc in Steam Link you hold down FN then press the key!
I just found it out by luck.