I'm trying to find a way to use the RBS module for a new application and haven't been able to figure out a way to meet the applications requirements. The application will be used to track multiple projects. New projects may be added to the application at run time. All projects will share the same permissions. Users need the ability to have different roles and permissions within each project and I need to be able to determine their permissions for a specific project at run time, not just the over all application.  Attached is a diagram of what I'm trying to accomplish. Any suggestions?

-Larry