yawor/Jason, do you have a command line to map to Media home key?
I just bought Flirc and Nexus player and integrate them with my universal remote URC-880. I got every keys mapped and working on my URC-880 except Nexus Home button, which can exit any apps and go back to Nexus home screen. Logitech keyboard Media home key can also work the same as Nexus home button.
I have a workaround for this home button:
1) Alt + Esc take me to Nexus home screen for all app (youtube, Kodi), except Netflix
2) To exit Netflix, I use F12 key but it has a confirmation pop-up (No/Yes). to create an one-click button to exit Netflix, I combine F12 and right navigation key (to select 'yes' using URC-880).
The workaround above is working but not as seemless as using ONE home Nexus button (or keyboard media home key).
thanks to yawor from another thread. I used command line to map window key. combing window key and right navigation key into one search button on my URC-880, I can launch search globally from anywhere (no matter what app you are in).