@zehanort You cannot set hotkey & Fast forward on the same button, the most you can do is set the hotkey to a button other than select (not recommended, but possible), and set fast forward to another button.
Example:
Hotkey = R2
Fast forward = L2

You can make a Configuration overload file for this, for an entire console, or, just for a game, read the documentation:

Use the survey tool and you will notice that some users here on the forum have already successfully done configuration overload (not for this purpose).

@voljega thank you very much

@turtlespitz Are you booting in UEFI or LEGACY ?

,@Paulo-Presa-Evangelista
Try to install Filezilla and you will be able to read the fullsd card via sftp and modify your share section by uploading, downloading files,. I did it my way (Sinatra) 😉

@riomanbearpig I suppose you are missing the corresponding cue files. Bin files need a cue file.

@voljega excellent! gave it a try and it worked great! thanks for your help

the virtual gamepad just helps not to plug a keybooard to reconfigure, that's all

es_input.cfg is located in ~/.emulationstation on the SD, or \\recalbox\share\system\.emulationstation through windows network shares