Show usage of top "power" users

I have a couple of usage reports on my r360, but I'd like to be able to display the usage of just the "Power" users for accounts with a large number of users.  ie. Display just the usage of maybe the top 5 users.  I *thought* I could use the Ranking function for this, but if I try to Rank by User, it gives me the top 5 users in the Alphabet, since Username is a text field (Is this really how ANYONE would want it to work?!?!) I've tried ranking by the "Sum of Usage Hours" but that just gives me the one week with the most usage, which is what I would expect if I ranked by "Date". Ranking by "Date" gives me the most recent date, not the date with the highest usage.





Here's my account usage for ALL users on an account (this one has 20 users): http://screencast.com/t/s6WvKRPU5





Here's what I want - Just the top 5 users usage data: http://screencast.com/t/Lme0InEh 





Is there any way get this short of visually picking out the users with the most usage, and manually clicking off all the other users (doable with 20 users, nearly impossible with 200 users)?





Additionally, it would be really nice if there was a way that when I click on individual users' names, it isolates them and shows me *only* that data point, rather than removing it from view. And maybe I could Ctrl+Click to add more? Sort of the opposite of what happens now? That would make it a little easier to manually pick out top users.