Gupshup始终可见自定义键盘

Question

是否总是可以在gupshup中显示“自定义键盘”（选项Vanilla，Chocolate，Butterscotch）？

原始示例：

if (event.message == "hi"){
        var payload = {"type":"survey","question":"Hello,What is your
                favourite flavour of icecream?","options":
                      ["Vanilla","Chocolate","Butterscotch"]};
        context.sendResponse(JSON.stringify(payload));
        return;        
   }

if (event.message == "Vanilla"){
        context.sendResponse("Ok, getting vanilla ice cream");
        return;
   }