Report Studio Macro Language

[compunuke]

Does anyone know of an IBM/Cognos document or publicly available book that describes the Report Studio macro language more fully than the Cognos Report Studio Users [Developers] Guide document?  Although the guide shows all of the allowed language commands, there is very little detail and few examples.

In particular, I am trying to parse a comma separated list from a prompt text box and use it to drive selection in a Master/Detail repeating table.  I am imagining that the macro command ARRAY() might be useful, but can't quite get it to work without a better explanation and examples.