To use the Subtract:
Click Combine the Features toolbar, or click Insert, Features, Combine.
Combine PropertyManager will appear.
In the Operation Type, click Subtract.
In the Main Body, select the body that will be maintained as the main body.
or select a body of solid body design FeatureManager folder tree.
Under the body to Subtract, select the bodies which we want to remove for Solid Bodies.
Click Show Preview to see the feature.