that is not possible at this time. This feature has been requested before. Thank you for you suggestion.
You can duplicate one of the folders, and mix your own set for now.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit