Collect file usage together under one tab

Right now the total amount of space used is shown on one tab and the breakdown of how that space is used is scattered over three other pages.  When the account total is larger than you expect, you have to know where to go find the directory usage, the shared folder space used and the backup space usage.  It would be really helpful if all of this space information was collected together on a single tab.

I went over my account limit, but couldn't figure out why that was because in total the files I knew about used less than 10% of the limit.  What I did not realize is that I had a backup that was using 90% of the space--and it was a secondary backup I did not need.  Bringing all of the file usage information together would have allowed me to see exactly what was going on.