I just added the following information in the sas-bi blog. (http://sas-bi.blogspot.com/2009/10/shared-cascading-prompts.html)
On page 15 (example 6) of the paper: http://support.sas.com/resources/papers/sgf09/355-2009.pdf, there are details on how to create a group of prompts and share it at the group level.
... View more