Compare revision of an object
          The object generation or revision of one object can be compared using the  option from the  menu on the Revision History tab on these sessions:
          
         - Document (pdpdm2600m000)
 - PLM Item (pdpdm1600m000)
 - Folder (pdpdm3600m000)
 
          Note: The  option is enabled only when the object generation is created and freeze.