Creo Flexible Modeling > Surface Selection in Creo Flexible Modeling > About Selecting Surfaces
  
About Selecting Surfaces
When you create a Creo Flexible Modeling feature, you must select the surfaces of the geometry that you want to move or modify. Select individual surfaces or surface sets before or after you enter a tool.
Before entering a tool, select a surface and use one of the following options to select additional surfaces:
Click the Shape Surface Selection buttons.
Right-click the graphics window to access the shortcut menu.
Click Geometry Rules.
When you first enter a tool select a surface and use one of the following options:
Right-click the graphics window to access the shortcut menu.
Click the References tab of the tool. To select rule-based surface sets and exclude surfaces, click Details. The Surface Sets dialog box opens.
All procedures start with selecting surfaces. You can use the Shape Surface Selection buttons for efficiency. When you enter the tool, you can immediately begin to manipulate the selected geometry. You can also enter a tool and then select surfaces.