Pulling data from one field to another field in Cost Accounts under Costing for Persons page

Hello experts,

The 'Assigned Project Code' field is a newly created field in the Cost Accounts under Costing for Persons page. Now, the client wants to populate it with the data that is provided in the 'Project Code' field. They should have same entry.

Is there any possible workaround that we can do aside from loading values through HDL?

Thanks.