As a user of Agile Boards I'd like the details of an Epic to show up in the Details Pane on the right side of the board

When I expand an epic from the epic list on a sprint board I should be able to click on the epic key and have the details of the epic show up just like an other issue type in the details pane on the right hand side of the sprint board. Currently I have to use my browser functionality and right click on the epic key and open in another tab to see the details.