Existing Functionality: Currently users must go to the Metric Selector window to add/remove metrics by clicking on the 'Showing' link on the report.
Idea: Provide users the ability to add/remove metrics from the report details page, without having to go to the Metric Selector window. There are several ways of doing this via a dynamic reporting interface, however; the attached is an example of how it might integrate into the existing interface. In this example, there would be a flyout menu to be able to select metrics to add to the report. The user could also remove existing metrics by clicking the remove ('X') icon in the 'Showing' list.