Allow users to be assigned to 2nd user group based upon product variants

-- HikaShop version -- : 4.3.0
-- Joomla version -- : 3.9.20
-- PHP version -- : 7.2.32
-- Browser(s) name and version -- : N/A
-- Error-message(debug-mod must be tuned on) -- : N/A

Hello! Users can be assigned to a user group after purchase based upon the base product settings. If, within a product variant a user is set to be assigned to a different user group, that setting overwrites the user group after purchase setting in the base product. We have a use case, where we could use an alternate user group assignment after purchase set in a product variant.
The base product user group after purchase is used to add a user to a group that is used by downstream systems, Moodle, to assign users to classes they have purchased.
If we could have the ability to set a second user group based upon the product variant settings, we could use that setting to do things we cannot do otherwise because the system relies on the base product group after purchase setting to assign users to classes they've bought.
We are using HikaShop with EasyProfile, Joomdle and Moodle. They ability to set a second user group based upon the product variant would allow us to display or hide appropriate fields based upon the product variant selection.

Thank you!