Visible the Comments to AP Invoice Approver that entered by Account Coding Approver.

As per the requirement client using two workflow approvals ( FinApInvoiceAccountCoding and FinApInvoiceApproval) . And wanted to Visible the Comments to AP Invoice Approver that entered by Account Coding Approver while time of approving invoice.
Process tested should be:

1. Invoice created and routed to Coder to update Accounting Code.
2. Coder codes and after hitting Complete, in the comment screen adds a comment.
3. Invoice is routed to Invoice Approver
4. Approver wants to see comment what Coder left.