Two different billing addresses, no shipment

-- HikaShop version -- : 4.7.2
-- Joomla version -- : 4.3.1
-- PHP version -- : 8

Hello,

we use the HikaShop to offer training & online courses through our site.

Now it is required that there is the possibility to work with two addresses in the ordering process.

The visitor can register for a course, for example, but enter the address of his company as the billing address.
At the moment I only see the option of specifying a different delivery address in Hika, but no second address for an invoice.

Can this be solved with Hikashop at all?
Is it possible - if HiklaShop cannot do this - to add additional fields to “Address”?

Thank you very much.