'Finally Close' Purchase Orders

Hello,

Most of our purchase orders are in closed status as opposed to finally close.

We use three way matching and most PO's end up in closed status.

'Mass Close of Purchasing Documents' program can also be used to close the PO's.

However what is the solution to 'Finally Close' Purchase Orders, which our Audit and Corporate Finance wants.

Is there a solution rather than manually close them which is a monotonous and time consuming job.

Many Thanks,

Kris