Extra fees for an attribute

Hello,

I recently created my website on WordPress to sell handmade glasses directly to professional opticians. I have about 2160 different models. I offer a sunglasses option, for which I want to add an additional fee to the base price of the product. Given the number of product variations, I don’t want to duplicate these 2160 products, as it would weigh down my site, nor do I want to manually enter each new variation “with or without sunglasses” with the corresponding price. The idea is to have a way to enter an extra fee for this attribute all at once, which will automatically be added to the base price when the customer selects this option. Is there already an option or a plugin that allows this? I have searched a lot but haven’t been able to find this functionality, as the plugins either aren’t compatible with my WP version 6.2.2 or aren’t compatible with Variation Swatches for WooCommerce.

I really like the interface that Variations Swatches offers, that’s why I don’t want to switch to a different extension. I would greatly appreciate finding a solution. I am available for any additional information and thank you in advance for your help. Have a great day! Quentin