How to copy AR invoice line DFFs, when duplicating it

Summary:

We have a usecase where there are descriptive flexfields on both header and lines of some AR invoices.

The requirement is to duplicate the AR invoices utililzing the out-of-the-box "duplicate" function Oracle FUSION Cloud provides.

The setup to automatically take over and default the header DFFs in the duplicate works as expected.

The DFFs on AR invoice line level are however not defaulted based on the original invoices. Those show as blank in the edit screen of the duplicated invoice.

Is there a way how to automatically populate the invoice line DFFs as well based on the original invoice?