You can change the size of the 3D View window of the Visual Customizer to make it larger or smaller.
If you don't see this UI, it means you're using our previous version. You can switch from your Zakeke back-office > User Interface settings, but if you don't see the option to switch, contact us at help@zakeke.com.
How to do it
From your Zakeke back-office go to Settings > User Interface Settings > UI Editor > Settings > 3D Preview and check Custom 3D Preview size.
You need to set the width and the height in pixels.
If you want to restore the default size of the 3D view, you only need to uncheck the option.