As a user I would like to be able to view epic as one axis of the Two Dimensional Filter Statistics gadget.
To view data for an epic in this gadget the Epic Link field is most appropriate. This is the field that shows the name of the epic to which an issue is assigned. The Epic Name field, which is only available on the epic issue type, will not be added to the gadget since there seems to be no clear use-case for its inclusion and it is likely to add confusion.
Original summary: Epic Name in Two Dimensional Filter Statistics
Original description: It would be great if we can have an option to add the Epic Name as one of the axis in the Two Dimensional Filter Statistics gadget.