Is it possible to create an invoice Line DFF that Pulls/defaults the value at the Header Level

Summary

We have a DFF on the line for project information called: Vendor Name. This should be the same as the Supplier Name at the invoice header. I'm looking to see if it's possible to default it

Content

On the invoice header we have supplier name. On our invoice line we have "Vendor Name" as a DFF using column Attribute 1. This field is in the project section of the invoice line. The Vendor Name on the line should always match the supplier name on the invoice header. Because they are 2 separate fields that aren't related a user can put in a supplier name on the header then put in a different name on the Vendor Name attribute in the line. I'm trying to prevent this by seeing if it is possible to default that value based