Import your solid model or IGES file.
If necessary, transform the part so that the surfaces that represent the features are facing toward the Z axis.
Click the Feature step 
from the Steps
tool bar or the Advanced toolbar.
Select your either a Boss or Pocket feature type. Click Extract with FeatureRECOGNITION and click Next.
Click Use horizontal surface and click Next.
For a boss, select the flat top surface of the boss, for a pocket, select the flat bottom surface. Click here to see examples of these surfaces. For more information see Feature recognition - surface selection. Click Next.
The top and bottom page is displayed. Enter the top and bottom values or click the pick buttons and graphically pick the locations. Click Next. For more information see Feature recognition - top & bottom
Confirm the extracted dimensions of the feature. Modify the feature’s dimensions if desired and click Next.
The Strategies page is displayed. Click the desired attributes depending on your manufacturing preferences. Click Next. See Strategy tab for information on the specific attributes.
The Operations page is displayed. This page displays the operations that will be used to manufacture the feature along with the names of the selected tools and calculated feed and speed values. If these values are acceptable, click Finish. If you want to change the tooling or feeds and speeds click Next and follow the instructions on the screen.