Sometimes we must calculate per a code that is not in the options available. It will be easy and useful to implement a custom code, where customers are free to check all the options they prefer (choose SIF as per a particular code, or B31.J, considering torsion, axial, others, check for longitudinal, traction, etc, check for Von Mises....). For example, sometimes I design for EN 1594.
We already have General Code that can do a Von Mises check and you could export this result to Excel via Report Manage and post process there.