Signature fields on the final PDF

I have an Automate workflow with a generate PDF outcome followed by a request signature outcome. I have 3 signers identified and 3 signature tags on the docgen template. When looking at the final PDF, the signatures are identifed as Signature1, Signature2 and Signature3 for the Field Name in the Signature Details. Does anyone know if there is a way to customize the Field Name for each signature? For example, Signature1 is actually the system user, so I would like to identify that as “User Signature” - I have this as text on the docgen template as a workaround, but I am looking for a dynamic solution.