No Bends
You can roll back all bends from a sheet metal part in which bends have been inserted so that you can make additions, such as adding a wall. This is available only in sheet metal parts with Flatten-Bends1 and Process-Bends1 features.
Rolling Back All Bends
To roll back all bends from a sheet metal part:
Click No Bends 
on the Sheet Metal toolbar to roll back the bends up to Sheet-Metal1.
The bend radius and bend allowance are rolled back. (The part is not flattened.)
Restoring All Bends
To restore all bends to the part:
Click No Bends (Sheet Metal toolbar) again.
