Looking at the script source code, module BatchPreprocessing-GUI.js, I see this section is commented:
/*
this.exportCalibrationFilesCheckBox = new CheckBox( this );
this.exportCalibrationFilesCheckBox.text = "Export calibration files";
this.exportCalibrationFilesCheckBox.toolTip = "<p>When checked, calibration file names will be exported in generated instances.</p>";
this.exportCalibrationFilesCheckBox.onCheck = function( checked )
{
engine.exportCalibrationFiles = checked;
};
*/
So it looks like this feature has been removed? Which would explain why I cannot save the list of calibration files.
Craig