I don't see the information shown in the GUI for steel design configuration settings being available to read or write through the class 'steel_design_uls_configuration'.
the selected elements can be determined in the API (gRPC), it is worth taking a look at the documentation here. Using AI is good, but reading our documentation is better . Of course, the ULS settings for the various add-ons can also be addressed in API (gRPC).
With regard to the ULS settings, it appears that existing configurations can be retrieved via a template and assigned to the current project. Unlike with the API (gRPC), it is not possible to access the individual properties via code using the API (SOAP).