Use the Select Graph {Number} Series form to select the type of result (moment, stress, force) to be displayed, and thus optimized, during this interactive design operation.
Access the Select Graph {Number} Series form as follows:
Complete design of a steel girder bridge.
Click the Design/Rating > Superstructure Design > Optimize command to display the Bridge Object Superstructure Design and Optimization form. On that form select the Bridge Object, Design Request, Girder, and Span for which interactive design is being undertaken.
Click the Select Series To Plot button.