I could not find an answer to this question. I hope I didn't miss it. I have a MacBook Pro Retina 15 and I have a Thunderbolt Display for it. I am considering replacing my 2009 Mac mini that I use as a server for my home with a 27" iMac. Can I use my current Thunderbolt Display with my MacBook Pro and the iMac so it is a 2nd 27 inch monitor for the MacBook Pro? Thus giving me 2 27 inch monitors?? Thanks.