You can configure multiple weldment profiles of structural members as library features.
You can add different configurations of a structural member and save them as one profile in a library feature.
For example, instead of having 50 separate library feature files for square tubing sizes, you can have one library feature file with 50 configurations that you can control by a design table.
When creating or editing structural members, you can select the configured library features in the Structural Member PropertyManager.