To define user-defined fields (UDFs)
In the Maintenance area of Content Management, select User defined fields. Select an existing CM user-defined field (UDF) to change its properties, or you can add or delete a UDF.
Verify a CM UDF's appearance and behavior by editing any content record and looking in the Properties section, between the Mark as important until field and the Help URL field.
Note: When you add, change, or delete a CM UDF, existing content records and their rendered .aspx files will not reflect the changes until you edit the content record, specify the desired value for the UDF, then re-publish the content record.