Solution for Dual Approval of CEO's Expense Reports (non-AME implementation)?

Hi,

Does anyone have a solution or creative workaround which can ensure that the expense reports of the Chief Executive Officer in some way go through dual approval by two other directors?

We are not using AME, so working with the supervisor hierarchy approval method.

I see that there could be an option to use the Reassign - then Transfer option from one director to another, if the approval actions are done through the Worklist, but we want the approvals to be done from the workflow notification emails only. Unlike iProcurement requisition notifications, iExpenses does not seem to have an 'Approve and Forward' option within the email notification (only Approve, Reject, Request Information).