Hi Kay,
In the past (Cognos BI v10.2.2), we used to have access to User Interface and Error String Customization Toolkit (available with the IBM Cognos Software Development Kit). Taken from the documentation, this toolkit can be used to facilitate the customization of the messages and user interface text in certain Cognos products.
The documentation for this toolkit is still available:
User Interface and Error String Customization Toolkit Installation and User Guide.
It might help you to achieve what you are looking for.
Best regards,
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Patrick Neveu
Consultant
Positive Thinking Company
Paris
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