I have a requirement to be able to see what is being displayed on the second monitor connected to a macbook on the primary display. I can't use mirroring for this because I will doing something different on the primary display. I need to be able to see the second monitor display in a window.
I am going to be connected to a large display on stage and (potentially) won't be able to see it.
Does anyone know if there are any apps that will allow this specific functionality?