How to override the OD Order Date (TRDJ) in P4310?

Hi All,

User created the old SD order and still open (let say in 09/12/2014). Today they added new line type D on that old SD.

This new line will have F4211.TRDJ as 09/12/2014 (defaulted from header), and subsequently it will create OD with F4311.TRDJ as 09/12/2014.

Later on the printed OD document (R43500), it will print PO Date 09/12/2014 instead of current date. 

So is there anyway to override the TRDJ either in P4310 Screen?

I can see the P4310 Header - Order date was disabled for editing, also has tried to do Order Revision and Change Order but no success.