Here are the simple step by step instructions for updating a MARC record in OCLC and overlaying the corresponding record in Aleph with the new and improved version.
Search for title
Click on the title or on edit record to the right
Make your edits to the record
Click on the “Save” drop down menu then choose “Replace WorldCat record”
Click on the “Record” drop down menu then choose then “Send to local system (via TCP/IP)”