To save a backup of your design:
1. Find your template in the "Saved Designs" tab and click the "</>" button:

2. In the pop-up window,
be sure "3DSellers" the chosen listing tool,
Select all of your code,
Shortcut select all: "Control+A" for Windows or "Command+A" for Mac,
then copy it:

3.Open a normal text editor and paste your code into it.
On windows, you can use Notepad:

Save it to a safe location.
4. Then if you want to re-install it, choose "Custom template" under the "Create Designs" tab:

5. Paste it into the HTML Editor, name your design and save.

5. Your template will now be available in your Saved Designs tab and can be applied to your listings!