Individual document updates or modifications can be made directly from the search results page.
Use the search panel to find the document you need to update, click on the document in the main search results panel to expand the document level tool bar
Click the option to "Edit Registration"
If you don't see the option to "edit registration" you might not have the access level needed to modify that document. Please contact your site admin for details.
In the "Edit Registration" window make the required updates then click the "Update Registration" button.