In version 2.5 there is now an "update metrics" button directly underneath the "Actual and Threshold Values" box on the Scorecards Overview section for metrics.
Clicking on the button turns the box into a metric value form. Users can then update metric values and comments, directly on the page.
This is just one of the many new enhancements in version 2.5. Some of our largest customers are currently beta testing the software with great results. If you're interested in checking it out, let us know.