Hello @saracomin again,
sorry for not getting back before the weekend.
Unfortunately, the FREE version of our plugin available here won’t support that out-of-the-box. I mean even if you modify the code and listen to custom add_to_cart button classes, you would encounter issues with getting the details of actual product (variation name, price which can be different for each variation).
Our paid plugin would make that slightly easier, because we detect if product type is variable, then we make all variants details available for JS.
Alternatively, maybe there is an option to make this table plugin reload page on add_to_cart, then the event can be generated server-side. Either way we would need to extend even the PRO version to support this plugin.
I don’t want to only steer you towards our paid offering, so you may want to look how the default add_to_cart event is implemented in this plugin and try to duplicate that code and extending it to cover your use case:
https://github.com/tagconcierge/tc-woocommerce-plugin-free/blob/develop/src/EventStrategy/AddToCartStrategy.php
If you decide going that path I can help figuring out how to connect that with existing plugin.
Let me know if that was of any help.