Currently there is no way on Roblox to get a list of all the keys in a config. This is a bit odd to me given there’s clearly some API that allows for this given the config editor lists all of them.
My primary use case for this at the moment is an in game config editor for quick testing in game. Other use cases could be say fully generating items from a config. I.e having all configs that start with TOOL_ generate some form of tool with a config provided.