path found
/opt/retrosmc/opt/retropie/configs/all
I have edited the file retroarch.cfg
#Hotkeys- Hotkeys enable you to press a combination of buttons to do such things as exit emulators, save states,
# and load states, as well as any other functionality in an emulator. (In the example below 8 is the select key
# and 9 is the start key so when I hold down select and press start it will exit the emulator.)
input_enable_hotkey_btn = 8
input_exit_emulator_btn = 9
I attach the full cfg file.
Unfortunately still not working
Thanks