The System Hierarchy can be created and maintained through the Admin Tab > Definition > Systems command. For each system, there is also a subordinate SYSCDA element containing default values per system for the Diagrams application. For instance, when creating a new pipeline, the Pipe spec, Insulation Spec, Fluid Ref etc. can automatically be picked up from the defaults set up in the SYSCDA element. Please refer to the Design Common Functionality User Guide for setting up this data.

The System Hierarchy command is also available in the 3D Design applications.