Rom-specific Hotkey changes - LoZ: Link's Awakening

[JaymesRS]

Link's Awakening uses Start+Select+A+B to trigger the save and quit dialog, and with the hotkey for exit being Start+Select, the only way to save the game is to die (which actually eliminates a possible ending). I would like to change the hotkey for that game only to "Y" on the SNES controller I use to play for this game. I know Y is btn 3 on the controller, and I'm trying to change that to the hotkey for this game only.

I know from Here that I can have a Per-ROM Override, but I'm not sure I'm understanding the instructions. Do I just create the config file for the game per the instructions and edit it as follows:

input_enable_hotkey_btn = 3

# Never save-on-exit after an override config
# or the override will make into the core config.

config_save_on_exit = false

Also, if I want to disable hotkey functionality can I just remove the button line in that rom-specific config file like this?

input_menu_toggle_btn =

# Never save-on-exit after an override config
# or the override will make into the core config.

config_save_on_exit = false

I wanted to clarify first as I don't want to accidentally mess up my main config.

[JaymesRS]

I don't know if this is the best way, but I did figure out how to change it for this game and disable RetroArch saves to eliminate accidental overwriting. In case anyone else needs this in the future:

Create config file based on instructions from here, name will be [ROM NAME with Extension].cfg

In that file paste the following with the hotkey button of your choice:

#Change Hotkey for this game only
input_enable_hotkey_btn = 3
#Disable RetroArch saves
input_save_state_btn = null
input_load_state_btn = null

# Never save-on-exit after an override config
# or the override will make into the core config.
config_save_on_exit = false