How to reset keyboard controls for one platform

[neurocrash]

Hi,
I used Retropie configuration>start to remap the keyboard to make it more usable, but unfortunately the original keymap is embedded in the retroarch.cfg files in the platform directories such as for Vectrex. This means that the menu controls do not necessarily correspond to the in game controls.

To make matters even more confusing, even if I manually edit the config file for the Vectrex, the controls for Retroarch UI still correspond to the original keyboard mapping.

Is there any way to reset the outdated bindings in the config file for each platform, or any alternative to manually editing config file and individual binding to resolve the conflicts?

Thanks