Filters are custom-created views of requests. Each filter has a set of criteria, defined by the creator using specific conditions that requests must meet to be returned in the results set. Filtered views can be created and saved on the User or global level.
At the bottom of the left nav, Users will see a list of both personal and global filters. Personal folders can be listed individually on the left nav or grouped into folders. To access the contents of a filter, click the filter name.
To modify the properties of a filtered view, simply click the edit link in request grid view.
For more on the specifics of Filter modification, see the Filters page of the manual.