Controlling Project Commitments

If I recall correctly in previous versions of Oracle Projects you had the ability to determine which items would be treated as commitments.  For example, you could set the system to only include Approved Purchase Requisitions and Approved Purchase Orders rather than picking up draft Purchase Requisitions.  I'm trying to determine if this same functionality is available in Release 11.5.10, however, I can't seem to find a reference to this.  I would appreciate any information how to do this.  I seem to recall that one of the prior Family Packs may have removed this functionality.

Thanks,

Bruce Maghan