I have two monitors and am trying to figure out if i can get the 3 screens to work independently. Current set up Left: External monitor (hooked up to thunder port) Center: IMAC 27 inch Right: External monitor (hooked up to thunder port) I have been use the center and right for a long time and just added the left one. Currently it looks like it is just an extension of the middle monitor. Is there a way to make all act independently. From the settings option it looks like they are all independent. So my questions: 1. How do I make them all independent 2. can I make it so the mouse can scroll left to the left one and right to the right onw. Make sense???