In the SQL or Timeslice trend chart of DPA where it shows all the top queries for a time period, if you hover over a segment of the bar it shows you what query that segment represents. However if you click on it, it drills into that time period, not into the query. You have to note the query number and then find it on the side in order to click into the details. I think if you click on the bar it should take you into query details where you can look at history and run the analyzer. If you want to drill into the time period, click on the time you're interested in at the bottom of the chart. Or perhaps just make it an optional behavior in settings.
Thanks!