Creo Simulate > Modeling Structure and Thermal Problems > Meshes > Native Mode Meshes > Creating an AutoGEM Mesh > Surface > Surface
  
Surface
Select the Surface option in the AutoGEM References area of the AutoGEM dialog box to create shell elements, 2D plate elements, or 2D shell elements on one or more surfaces that you select. AutoGEM creates the type of element appropriate for your model type.
The description of the Surface command is divided into the following sections:
Using Surface
Strategies for Using the Surface Option