Report Generation in PDF or Excel

What's in the log is what you put there.  So, if you don't deliberately write any activity out to the log, it won't show up in the log.  If you have need of more detail, more information, organization of tests/test cases, etc, then you need to write that information out to the Log using the Log.Message method along with, potentially, Log.AppendFolder, Log.PopFolder, Log.Picture, etc.  If all you're doing is recording a test and playing it back, all you'll get is the events in the log without additional detail.