publishing bw workbooks to the portal

I am trying to find out what portal role a bw designer would need in order to publish workbooks\queries to KM in the portal and also to publish reports as an iview. We have a few bw folks who are trying to accomplish this. In the portal I had assigned them to Business Planning, Business Explorer and Business Intelligence roles as well as Content Admin adn System admin roles. They said they tried to publish a bw workbook to the portal but were not able to, so for the heck of it I made some of them super admins and then they were able to publish the reports to the portal. I do not want to leave them as super admins, but I cannot find any documention on sap help that tells me what portal roles they should be in.