2 face button setup and other questions
1. I decided to do a 2 button FPZ build and wondering if I can just remap the sholder trigger buttons to become the missing two face buttons? I mostly play games that just need two buttons but there are a few on SNES that require more than 2...

2. Also wondering if when using the power button to go into the special mode, is this remappable too since I only have the two buttons? 

3. Ive noticed when turing off Wifi I seem to get better fps, is the best way to go to wifi settings and disable but use the text file to connect to wifi when i need it? What about bluetooth?

4. Finally, does anyone know how to turn back on samba shares? I just find they work better than SFTP for transferring roms.
Hey Nolook!  Let me see if we can work through your questions.

1)  You can set up the button configuration any way you like.  I also believe that RetroArch allows you to have emulator-specific button mappings (and maybe even ROM-specific ones).  See https://github.com/RetroPie/RetroPie-Set...figuration and https://github.com/RetroPie/RetroPie-Set...figuration

2)  When you run the controller configuration, you can set the hotkey to any button you want.  You can use the select button as the hotkey by pressing it during the hotkey configuration or just not setting a hotkey (and then I think RetroPie asks you if you want to use SELECT as the hotkey, IIRC).  

The Freeplay Zero/CM3 power button acts very different to any other button.  It's meant to be a "special" toggle effect for hotkey usage.  If you want to use it as a regular button, you would need to tap it twice.

If you would want to edit its behavior, you would need to change the code in the button driver (https://github.com/TheFlav/mk_arcade_joystick_rpi).

3)  The best method I've seen to do this is to use a program called rfkill.  
The basic idea is to install it with
 sudo apt-get install rfkill

And use these commands to "kill" or unkill WiFi.  You can also kill bt, I think, and you could add a menu item to do these if you wanted.
 sudo rfkill block wifi
 sudo rfkill unblock wifi

There's a bit more info at http://www.sudomod.com/forum/viewtopic.php?t=3239

4)  Look under under the RetroPie set up, and select "Configuration / tools" and then "Samba".  You can install it.  Once completed, you have to select "Install RetroPie Samba Shares."  I think that's will get you there.  Let me know how that works.
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