This is hard to explain but is what I need to do. I want to use my Mac Mini to stream movies etc to my Smart TV via HDMI wired through the wall. But some times I want to mirror my screen to my Apple TV downstairs over WIFI instead. Set up - Mac Mini and Smart TV is upstairs Apple TV and LG TV is downstairs (hence using Aiplay). I can get both to work but I have to mess about with the display settings and the Airplay settings when ever I want to change over from one TV to the next. At the moment this is the setting I see in the Aiplay drop down Connect to Airplay Display > ticked Mirror all displays > ticked Match desktop size to > Apple TV If there is a way to get this set up so I dont have to keep trying to configure it every time I want to use it that would be great!