Unfortunately there is no way to do what you're asking with TABULATE.
It would be interesting to see a snippet of your TABULATE output, if possible. Maybe we can come up with a solution in a future version of SAS.
A hint: You can enclose Listing output in "pre" and "/pre" to retain formatting when displayed in the forum. The directives must be in square brackets. (Does anyone know how to escape the brackets?)
-- David Kelley, SAS