I mentioned it before, but I really think that having the same order and naming here and below is important, not just for the example but also for the manuscript.  For writing it is called the rule of "parallel form" or "parallel structure":

http://grammar.ccc.commnet.edu/grammar/parallelism.htm
http://examples.yourdictionary.com/examples/parallel-structure-examples.html

So since it is "By Segment", "By Unit", and "By RecordingChannelGroup" below, it should be "by Segment, by Unit or by RecordingChannelGroup" here.