Architecting and designing : IDEF : IDEF3 : Modeling processes with IDEF3 : Propagating scenarios in IDEF3 process models
  
Propagating scenarios in IDEF3 process models
You can use the Scenario Propagation command to make sure that your Child IDEF3 Process Flow Diagrams have the same scenarios as their Parent diagrams.
▪Click Tools > IDEF Utilities > Scenario Propagation.
Note You must select a diagram in order to activate the Propg button.
See also
Modeling processes with IDEF3