I started configuring my Elementary OS, because I want to move from Windows finally. I just finished with Hyperion configuration (lightpack/ambibox - I still need to do something for screen grabbing from kodi/screen in general), copied whole library from Windows folder etc. PS, this is my computer in my room, I'm using it for work and entertainment, I have connected my TV by HDMI and my monitor by DVI. My soundcard - Creative Soundblaster X-fi audio PCI-e.
I have few questions:

1. Is there any way to use SPDIF output only in Kodi?
I have different speakers connected to analog output and I set it as default for all apps. But Kodi is playing sound only when default output in system is set to spdif (yes I selected in Kodi settings correct output). I don't want something like this.

2. I have partially configured lirc. I have OR22V remote, and it is reacting on commands in OS. Is there any way to make it work only with Kodi? I don't want to be able controlling my Kodi only when Kodi's window is focused.
In Windows I used eventghost (which was just awesome) and different channel for remote than "1". And second thing - if there is an option, then, can I configure every button for specific Kodi functions? For example red button - library refresh, green - menu etc? And I want only one button working system-wide - media center button, for starting kodi.

3. Refresh rate. Is there any way to set it right after gdm starts? Not after login to profile? I'm using xrandr startup script, but it's not what I want.

4. And one more thing.
I'm using option n kodi - "sync refresh rate to source video". But after end of video I'm ending with this refresh rate (it's not returning to 60Hz).

Thanks fo any help.