Extra field in WooCommerce attributes?

Question

WordPress

It is necessary to add an additional field in editing the Woocommerce attribute.

Generally, grouping of characteristics is required in the product card, I did not find any plugins. There are a couple, but they are paid. But if I add a field to the attributes, I can implement grouping.
I tried the ACF plugin, but I still did not understand if it was possible to add a field to the attributes using it. In general, I did not succeed. If possible, please tell me how to set it up. Or advise a plugin for adding fields to attributes