# Fold
Fold the unfolded bend.
Click the button to pop up the Collapse dialog.
Control description:
1.Fixed face: Select the fixed face on the sheet metal to be folded.
2.Bend to fold: Select the bend face to fold.
3.Collect all bends: When checked, automatically selects all unfolded bends of the sheet metal where the fixed face is located.
Note: The upper and lower surfaces of the fixed surface and the bend to be folded can be selected, but the side surface cannot be selected.