for a presentation I have to use two different display settings. For Keynote I want to see the presenters view on my laptop and the beamer should just show the slides. In between there are livedemos which require a resolution of 1024x768 and the screen to be mirrored.
So, I once discovered a hotkey to swap the current display settings with the ones I had before, but I cannot remember it and do not find it with google.
Does anybody know this hotkey or another easy way to archieve this?