WooCommerce Extra Product Options v4.1.2 [Codecanyon]

Demo link

New in version 4.0

Added compatibility with Aelia Currency Switcher with multi currency support.
You can now have validation features applied to the options created with the builder when they support it.
You can now include global forms to individual products even if they are not assigned to those forms
When choosing an image replacement or a picture to replace the product image you can now select between the various image sizes that WordPress applies to that image.