Approving Purchase Orders (10)

How do I approve purchase orders, PO?

Can I write a comment before approving or rejecting an invoice?

Why do I see a save button when I am approving my PO?

Can I add, remove, rotate and change the order of pages while I am approving the PO?

Update purchase order coding during approval

Can I get a notification when a PO I created is approved?

I was alerted that I had a PO to approve, but when I log in there is nothing there, where is it?

Can I see who approved the PO before me?

How do I submit a group of PO's for approval all at once?

I submitted a PO for approval, and I see that my approval has been automatically added to the PO. Why?