Adding lines to an approved purchase requisition

Hi,

Can someone let me know whether we can add lines or amend lines of an approved requisitions which is also autocreated in to a purchase order ?

Below is the scenarios;

- A requisition has 3 lines

e.g -

Line 1 = Qty 10 * Price 20

Line 2 = Qty 20* Price 25

Line 3 = Qty 30 * Price 30

- The requisition has been approved and it has been autocreated into a purchase order

- The requester has partially receipted the Line 1. In this scenario the 5 items have been receipted, The remaining quantity now against line 1 is 5.

The questions I have are ;

i) Now the requester wants to add 2 more lines to this existing requisition and resubmit it for approval. Is this possible under the standard functionality ?