Restricting IBPL entries to current project
I've created a document type called a Product Structure, and items within the product structure are the product structure elements. The idea is that when the user creates a functional requirement, he can assign it to one of the product structure elements.
So in the requirements item I have an IBPL that points to the defined items in the product structure. Works great and is really flexible.
But I would like to restrict the IBPL items that are displayed to the current project only. It is never acceptable for a requirements document to assign requirements to another products product structure elements.
Can anyone suggest how to do this? I've played with creating filters on the IBPL field, but cannot see how to filter on current project. if that is not possible I'm ok with associating the product structure document to the requirements document through a Relationship or Attachment, but didn't see how to set that up on a filter. Anything that restricts the items on the IBPL dropdown to something smaller than every element defined.
Any suggestions?

