Unable to rename a GAF mainstep

Hi all gurus,

Shortly; I have to rename one of the four steps of the Sourcing Cockpit application in a SAP SRM 7.03 system.

The standard configuration used by the system is /SAPSRM/WDCC_FPM_DO_SOCO_GAF .
Accessing the configuration by means of the component configurator, I can clearly see the four steps with their labels.

I tried to do as follows:

1. I created an enhancement of that configuration, in which I basically changed the STEP 2 description, from "Assign Sources of Supply (No Items)" to my desired label, e.g. "Work Area". Then I saved the enhancement but no changes are reflected in the sourcing cockpit application (still "Assign Sources of Supply" ).
2. I created a new WDCC, let's say Z_SOCO_GAF, by copying the original /SAPSRM/WDCC_FPM_DO_SOCO_GAF configuration.
   Then I modified the STEP 2 label exacly as I mentioned before.
   Lastly, I created an entry in table WDY_CONF_DELC in order to substitute the original configuration with my custom one.
   Again, I can't see any modification of that label in the sourcing cockpit application; however, right-clicking the GAF panel at runtime -> Technical Help I can clearly see that my custom configuration is in use:

What's the issue with the configuration, in your opinion? It seems that the GAF configuration is not considered when dealing with mainsteps names.

Thanks for your support!
Best regards,

M.