Automatically updating FINAL CLOSE status for a PO

Summary

Automatically updating FINAL CLOSE status for a PO

Content

Hello, 

Although the PO status gets updated automatically to CLOSE once full PO is received and invoiced however our requirement is the the PO should be automatically changed to final close status either immediately along with the close status or lets say after certain duration which we should define. 

Is it possible? is there any work around?