When viewing a report, it's often helpful to not only be able to drill into the support account and transaction detail, but also into the total rows. With Management Reporter 2012 CU11, you can now drill into those total rows from the web viewer.
In the screen shot below, the report is at the financial level, but I want to drill into the Total Revenues line to see what rows make up that calculation.
When I hover over the data in Total Revenues, it becomes a link like the other rows.
And when I click it, it drills down and I can see the rows in the total formula.