Picking / Packing List Template Date

Picking List  / Packing list dates are not displayed on the document template.

The packing list is sent with the shipment but it never shows the date that the good were pyhsically picked / packed. The document only displays the order date or the shipping date required. 

What happens if they are multiple packing dates and multiple delivery dates for the same order. The date on the document should be the date it was created.

See attached example where the shipping is months apart but in fact it shows the picking date is the same???

For a market leading WMS product; I cannot believe I event have to ask for this?