Steve,
We don't have a dedicated model for the OPA356 at this time.
The model is in development and should be available on that device's product page no later than next week.
A short-term alternative is to use the OPA355 model and tie the model's Enable pin to VCC in your schematic.
The OPA355 model is available on that device's product page: http://www.ti.com/product/opa355.
Please let me know if you have any questions.
Regards,
John