How to have more granular time report in junit request sampler

[kevin zeng]

Hi, 
 
I am new to JMeter. I would like to create a load test plan with a set of junit 
request sampler. Each JUnit request sampler will contains a sequence of user 
actions (i.e. login, view doc, and edit doc) to mimic a particular user 
scenario. Currently, if I use graph result listener, it will report time at the 
junit test case level. Is it also possible to report at the action level too? I 
will need this, because if I see problem at the test case level, then I will 
need to drill down to the action level.
 
Thanks a lot for your help!
 
Kevin