I have migrated my Chatbot from classic to unified canvas but I am wondering about a different behavior of Multiple-Choice questions. In the old bot, the user could select any of the options. But if he/she wrote something else, a matching topic was searched using trigger phrases. So the question to the user was: Select one of the options or type your question". How can I achieve such a behavior in the unified canvas? I have now a workaround consisting of one additional option ("None of the above, I want to type my question by myself"), which is not nice. Is there any other option? I have tried the Question answering settings, but I was not able to achieve the goal.