You can clone an existing zipper.
To clone a zipper:
If the Materials tab is not already open, on the Resources tabs, click Materials.
On the Materials tab, in the Trims section, in Edge Assignable, hover over the zipper image.
Click . A menu is displayed.
Lotta 2019 April Edition and newer
Click Clone Zipper. A clone of the zipper is displayed on the Resources tabs in the Trims section.