When ya have Libreelec running from the SD do ya control which buttons via the reset button?
Would be cool if we could have a dual boot screen, which I'm guessing with libreelec bootloader will be doable.
I'm not exactly sure what you mean. I prepare a bootable SD as per kszaq's instructions, insert and reboot using the toothpick method. LE boots, does some magic and reboots. This reboot will hang for me admittedly, but if I power off and on, the box will automatically boot from SD from this point onwards, no toothpick needed. My box has no buttons, that's all there is.
Personally I wouldn't want a boot time selector. It's so easy to just unplug a SD/ USB, a selector would just slow the boot process for no real advantage I can see.
I guess we've gone off topic now anyway, these things should probably be in the General Discussion thread as they're not 007 specific.