This is the window on my computer, it shows my two screens connected to my Mac Mini, on the right is the screen of the MacBook. In this configuration I merely move my mouse to the right corner of my right screen and it appears on the MacBook's screen where I can work with my mouse and keyboard. I can drag files from one machine to the other and they are copied machine to machine. Go to the OSXdaily website to download "teleport" and you will find the full instructions to set it up. This is a simple process and it works.