By using the Live Preview Switch Bar V2.0 you can now manually add products outside Envato to be showcased into the live preview bar! Add and manage your live demos in one place!
Demo https://codecanyon.net/item/envato-live-preview-switch-bar-for-wordpress/24190668
Downloadhttps://www.filecad.com/mzYi/Live-Preview-Switch-Bar-for-WordPress-v2.0.rar