To open a configuration file for editing
         
         
            - Open a text or XML editor or your choice and navigate to C:\Program Files\Autodesk\Maya2013\resources\CharacterControls 
               By default, CharacterControlsConfig.xml and CustomRigControlsConfig.xml are created in this directory at installation. These files are used to create the default layouts for the  and  tabs. 
                Note 
                        - On a Mac OS X system, navigate to /Applications/Autodesk/maya2013/Maya.app/Contents/resources/CharacterControls 
                        
- On a Linux system, navigate to /usr/autodesk/maya/resources/CharacterControls 
                        
 
 
- Select the configuration file you want to edit. 
               NoteEach time you edit the configuration file in an external editor, you must load the file in Maya in order to see your changes.
                     See  Load a new layout.