FRS: Show only GL description, hide account number.

In Financial Reporting Studio (FRS), I am creating a financial report where I want the GL Account column to display only the GL account description, without showing the associated GL account number.

I have attempted using both Member Description and Alias options for the GL Account dimension in the report.
However, in both cases, the display still includes the account number along with the description (e.g., “1000 - Cash”).

My requirement is to display only the account description, such as “Cash”, without the numerical account code (e.g., "1000").