Hi everyone! I have a... weird question. I got married recently and was given a Hengedock for my MacBook Pro by my boss, amongst other things. It's awesome and I love it, but I have an iMac at home I want to use it with. MacBook Pro is Thunderbolt, iMac is Thunderbolt. Before I dump $50 into a single cable, when the MBP is plugged in, can I 'switch' the iMac between target display and self-display with a keyboard stroke, or do I have to undock the MBP? In another vein - If I were to get a dedicated Thunderbolt display for the MBP at some point and connect the iMac to the display's additional Thunderbolt port... what happens? Is the spare TB port on the Display just an output? Thoughts and comments appreciated! Thanks!