if (this.id && api.control(this.id) && api.control(this.id).params && api.control(this.id).params.parent_setting) {
            parentSetting = api.control(this.id).params.parent_setting;
            newVal = {};
            newVal[this.id.replace(parentSetting + '[', '').replace(']', '')] = to;
            api.control(parentSetting).setting.set(jQuery.extend({}, api.control(parentSetting).setting._value, newVal));