I have an interface

interface IApplicationState {
    config: IConfig;
    lang: ILang;
    //many others
}

Currently is used in many places like in classes with connect from react-redux, or in reducers method like:

const setLangReducer = (state: IApplicationState , { lang }: { lang: LangType }): IApplicationState  => ({
    ...state,
    lang: {
        currentLang: lang
    }
});

I want to add some fileds inside at the root level, and all existing move down as children for new property e.g.:

interface IApplicationState {
    generalConfigs: {
        config: IConfig;
        lang: ILang;
    };
    externalConfig: {
        domain: string;         
    }
}

If I make change manually, I will must to fix all references for config and lang from root to generalConfigs.config and generalConfigs.lang

maybe is there some automatically options to change all references by changing interface structure?