Creo Reverse Engineering (Restyle) > Creating Polynomial Surfaces in Restyle > To Create a Surface from Net
  
To Create a Surface from Net
1. Click Restyle > Polynomial Surface > Surface from Net.
2. Hold down the CTRL key and select the curves in the first direction. Middle-click to complete the selection of curves.
3. Similarly, select the curves in the second direction. A surface is created using the selected curves. Middle-click to complete the selection of curves.