Deactivate an enhancement set in the WebUI  for testing purposes

http://scn.sap.com/people/belen.ramirez/blog/2010/04/26/deactivate-an-enhancement-set-in-the-webui-for-testing-purposes

2) From CRM7.0 SP3: note 1311966

User parameter WCF_IGNORE_ENHANCEMT to value 'A'  in transaction SU3.

This will disable all customer enhancements in these areas:                        
                                                                         
    o  Enhancement Sets                                                  
                                                                         
    o  UI Configurations                                                 
                                                                         
    o  UI Personalizations                                               
                                                                         
    o  Field labels in text repository                                   
                                                                         
    o  Changes in Design Layer (design objects and assignments)          
                                                                         
Keep in mind to remove this user parameter once you are done with the    
analysis!!!!