Add DFF on invoice line

Summary:

Hello,

We would like to add a DFF on invoice line level. Are there any ways to do it? Can it be done through sandbox?

But when adding the DFF, it displays in the details section instead on the line.

Version (include the version you are using, if applicable):

26C (11.13.26.07.0)

Code Snippet (add any code snippets that support your topic, if applicable):