I would like to write a custom program that can take in a .st file that has been generated from SureMotion Pro and use it to configure an STP-DRV-4850. Is there any documentation on the contents of the .st file or communications between SureMotion Pro and the drive?

It seems like most of the things set in Suremotion Pro are accessible with SCL commands (with the exception of some of the motor settings) but don't persist between power cycles.