Create selection index for any menu in rasa

@flore, yes i have intent valled as number

at the end following worked for me:

def slot_mappings(self) -> Dict[Text, Any]:
  
    return {
        "deregister_confirmation": [self.from_text(intent=["affirm","number"]),
                                    self.from_text(intent=["deny","number"])]
    }


def validate_deregister_confirmation(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
) -> Dict[Text, Any]:

    intent_name = tracker.latest_message["intent"]["name"]

    if (value == "1" or intent_name == "affirm"):
        return {"deregister_confirmation": "yes"}
    elif (value == "2" or intent_name == "deny"):
        return {"deregister_confirmation": "no"}
    else:
        return {"deregister_confirmation": None}