Creo Expert Moldbase Extension > Component Handling in Creo Expert Moldbase Extension > To Assemble Predefined Components
  
To Assemble Predefined Components
To assemble predefined EMX components, click EMX Components > Assemble predefined components. Select an assembly or part that has reference groups with predefined components. The component information is read from the reference group and the assembly is assembled and cut.
You can predefine any component by selecting the Predefine Component check box during its definition.