This “How to” presupposes that the field has been added to the project (see: How to add a score field to a team-managed project as Projectadministrator )
Open any issue which has a score value
Click on the text in brackets
Now all issues based on the same score calculation method are displayed.
You can extend the jql based search to refine the result list
Clicking on a value opens a dialog and you can edit it
This allows you to rate your requirements very easily