In the Design workspace, on the Sheet Metal tab, select Modify > Unfold .
Unfold mode is activated.
In the Canvas, select a stationary face.
Click individual highlighted bends to be unfold.
Optional: Check Select all bends to unfold all bends.
Click OK.
The unfolded sheet metal component displays in the canvas, an Unfold feature is added to the timeline, and unfold mode is active.
The sheet metal component returns to its folded state and you exit unfold mode.