Hi. I have the 15inch Retina Macbook Pro. I'm interested in Daisy Chaining external monitors. I know this requires at least 1 Apple Thunderbolt montor. I know if I get the apple Thunderbolt monitor I can Daisy chain that monitor to another thunderbolt monitor. But if I want to chain to a display port monitor like the Dell U2711. Is this possible to go direct? Or do I need some Thunderbolt device in between that has an output. I think I saw something where it couldn't go direct and you needed an in between device. But I forget what those details actually were. Thanks for any advice!