Customize Docusign with PO approval

Summary:

Is it possible to change the approval of the docusign document from the default buyer to a DFF or the requester field?

Content (required):

How to change the approval of the Purchase order based on a DFF present on the purchase order?

Docusign automatically chooses the buyer of the PO

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

22B

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