The centerline of sheet metal bending will not be displayed in project development.
Although the reply is late, it is still useful for people who have been in contact with sheet metal for a short time. Sheet metal basically realizes the idea of design-deployment mode (these two icons can be found in Tools-Customization-Model). When designing sheet metal, you can first execute the flat pattern command, then execute the design command, and then save it. The saved state is the design state. When you choose in the engineering drawing, you can see the curved center line as long as you choose the unfolded pattern. Command to expand the design drawing, click Design, and then save it to the drawing. Select the expanded drawing, and the bending line in the drawing will be displayed, as shown. Attached is the tag bracket PSM [].