How to transfer an additional field when posting journals from projects to GL

Summary: We are importing Expense Report costs from Concur into Oracle projects (as miscellaneous costs) and posting the accounting entries from Projects to GL. We additionally need to transfer a field (Employee ID) when the accounting is posted from the Projects subledger to GL. We need to capture the Empoyee ID in the "REFERENCE 6" column on the Journal Line. Is there a way to achieve this?

Content (please ensure you mask any confidential information):

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

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