To Recognize Geometry of Sheet Metal Design Objects
1. In an open sheet metal part, click Flexible Modeling.
2. Click the arrow below 
Sheet Metal Objects and select an option from the list.
Sheet Metal Objects and select an option from the list.◦ 
Recognize Bends—Opens the Recognize Bends dialog box.
Recognize Bends—Opens the Recognize Bends dialog box.◦ 
Recognize Bend Reliefs—Opens the Recognize Bend Reliefs dialog box.
Recognize Bend Reliefs—Opens the Recognize Bend Reliefs dialog box.◦ 
Recognize Corner Reliefs—Opens the Recognize Corner Reliefs dialog box.
Recognize Corner Reliefs—Opens the Recognize Corner Reliefs dialog box.◦ 
Recognize Corner Seam—Opens the Recognize Corner Seams dialog box.
Recognize Corner Seam—Opens the Recognize Corner Seams dialog box.◦ 
Recognize Forms—Opens the Recognize Forms dialog box.
Recognize Forms—Opens the Recognize Forms dialog box.3. To manually select geometry for the specified sheet metal design object, move the mouse over the part and select any or all of the surfaces that highlight. The design objects detected based on the selected references appear in the Attributes box.
4. To automatically select geometry for all specified sheet metal objects, click Automatic selection. All design objects that meet the criteria are automatically selected.
The Attributes box displays the number of individual design objects selected.
5. To locate forms on a reference surface, click the Locate objects on references and tag as Form collector during manual selection.
6. To change the recognition feature name, click Properties and type a new name in the Name box.
Click 
to display information in the browser.
to display information in the browser.7. Click OK. The recognition feature is created and is visible in the Model Tree. An object type appears in the Design Objects Tree when it is set it to be visible. Expand the object type to see the individual design objects.