Integration with Other Applications > Windchill Workgroup Manager Documentation > SolidWorks > Advanced Techniques > Managing SolidWorks Configurations > Assumptions and Restrictions
  
Assumptions and Restrictions
Consider the following assumptions and restrictions:
• Windchill Workgroup Manager assumes that SOLIDWORKS configurations are not modified independently of the generic model.
• By default, PTC_IS_INSTANCE is set to No.
* 
If you want the default value for PTC_IS_INSTANCE to be Yes, you can set this configuration-specific property in your SOLIDWORKS template files.