I use my IPhone, IPad and a Windows 10 laptop for managing our listing. Each operating system logging into Airbnb has some but not all hosting options available. When first setting up our listing I came across a message option section that I could set up a “canned” or pre-written response that I could send to a guest, for example, on how to check in etc. Can someone tell me where this is located and what operating system you are using?