motorhead
Participant
Post count: 65

Hi! You need to write it manually.

For all emulators:
/home/pi/RetroPie/configs/all/retroarch.cfg

If you want that changes only affect a single emulator edit retroarch.cfg in his own directory, and copy the lines from the “all” file:

/home/pi/RetroPie/configs/snes/retroarch.cfg
/home/pi/RetroPie/configs/mame/retroarch.cfg