You need physical buttons. It is about communicating with the machine what you really want and control it. If you want auto just have an option for auto. A go

You need physical buttons. It is about communicating with the machine what you really want and control it. If you want auto just have an option for auto. A good example is auto focus. Many has a button on the back to activate on an area with focus size and point control by a joystick. And if it is good, fix it so the machine does not decide to autofocus another area, subject, …