OpenBridge Modeler – Help ProStructures Steel ModelingSteel Connections Substation Gallery Simple Structure Creating a Simple Structure Creating a Simple Structure To use this Substation Gallery tool to create a connection, follow this procedure. Select from the Substation Gallery. The SimpleStructure dialog opens. Specify an insertion point and direction to orient the structure. Either: Specify the beam and column parameters. Load a Template. Optional: If you loaded a template, you may modify the parameters as necessary. Click OK.