Set to true or false.
True
Exports only the master part .xml file. All other parts in the common group refer to this master file in the assembly .xml file.
False
Exports the .xml file for each part in the common group.
Example
The example below shows S3DCommonParts set to false and CPAdjustment is off. Each output .xml file has the same Model Part GUID as the master part, and has the SMS_COMMON_PART node. To export each .xml file, turn on the CPAdjustment post process.
<S3DCommonParts>false</S3DCommonParts>
<S3DVersionControlEnabled>true</S3DVersionControlEnabled>
<S3DServices>
<!--S3DService>MfgManagedExportRule.CPAdjustment</S3DService-->
</S3DServices>