@Sardu @CrownedMartyr To "hide" consoles that you don't want to appear on the Emulationstation, just delete ALL the content inside the console folder that you want to "hide" (if you delete the folder it will be recreated automatically, so don't delete the folder, only its contents Don't worry about the readme file: if you delete the folder, it will be recreated.)

There is a known issue about deleted games still appearing on Recalbox, the team is working on it:
https://gitlab.com/recalbox/recalbox/-/issues/1390

For now, so that this error doesn't happen, delete all the roms you don't want, and, update the gamelist with some external software, such as Skraper or ARRM:

About the gamelist files being read-only, you need to access in write mode and stop the emulationstation while editing / deleting the gamelists, see the SSH commands here:
https://recalbox.gitbook.io/documentation/v/francais/tutoriels/systeme/acces/dossiers-et-commandes-ssh#ssh-commands

@Claudio-Cortes Read this:
https://forum.recalbox.com/topic/21937/recalbox-7-0-1-es_systems-cfg-file-does-not-exist-hide-some-extensions-file

@steveb83 will try it out thanks