Mac Gurus Unite and Help Me Please: I'm a newbie to MacBook Air and have searched to no end for a solution to adding external displays: Here we go: MacBook Air - Mid 2012 HengeDock for MacBook Air USB 3.0 Hub (4 ports) 23" Displays / Monitors - 3 (non-Mac) (Dell, HP, Samsung) I dock my MacBook Air in the HengeDock. I can run a USB cable from Mac Air / Dock to my USB 3.0 Hub /or/ I can run thunderbolt / mini display from Mac Air / Dock to ??? What would be the specific parts ( ie: display adapters, cables, etc) and set up in order for me to accomplish: Use of 3 external (non-mac) monitors - mirror mode (not extended across 3 monitors - but using 3 monitors independently for multiple windows, tasks, etc), while MacBook Air is docked (clamshell mode)? Note: I tested the MacBook Air in HengeDock, clamshell. 1 external monitor and it worked Now - how to get all 3 monitors live as described? I've seen how to do it with thunderbolt displays, with lid open, with iPad as a monitor, and many other combos. Just not the way I'm going after. I would greatly appreciate some detailed advice.